1051266678 has 96 divisors (see below), whose sum is σ = 2685000960. Its totient is φ = 271333440.

The previous prime is 1051266677. The next prime is 1051266679. The reversal of 1051266678 is 8766621501.

It is an interprime number because it is at equal distance from previous prime (1051266677) and next prime (1051266679).

It is a super-2 number, since 2×1051266678² = 2210323256546311368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051266673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 558543 + ... + 560421.

It is an arithmetic number, because the mean of its divisors is an integer number (27968760).

Almost surely, 2^1051266678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051266678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342500480).

1051266678 is an abundant number, since it is smaller than the sum of its proper divisors (1633734282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051266678 is a wasteful number, since it uses less digits than its factorization.

1051266678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1051266678 is about 32423.2428668078. The cubic root of 1051266678 is about 1016.8049058761.

The spelling of 1051266678 in words is "one billion, fifty-one million, two hundred sixty-six thousand, six hundred seventy-eight".