1264950647048 has 64 divisors (see below), whose sum is σ = 2626012509120. Its totient is φ = 566456198400.

The previous prime is 1264950647039. The next prime is 1264950647057. The reversal of 1264950647048 is 8407460594621.

It is an interprime number because it is at equal distance from previous prime (1264950647039) and next prime (1264950647057).

It is a super-2 number, since 2×1264950647048² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1264950646984 and 1264950647002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1333190 + ... + 2075402.

It is an arithmetic number, because the mean of its divisors is an integer number (41031445455).

Almost surely, 2^{1264950647048} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264950647048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313006254560).

1264950647048 is an abundant number, since it is smaller than the sum of its proper divisors (1361061862072).

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

1264950647048 is a wasteful number, since it uses less digits than its factorization.

1264950647048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742518 (or 742514 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 1264950647048 in words is "one trillion, two hundred sixty-four billion, nine hundred fifty million, six hundred forty-seven thousand, forty-eight".