1051879815 has 96 divisors (see below), whose sum is σ = 2219443200. Its totient is φ = 459797184.

The previous prime is 1051879813. The next prime is 1051879819. The reversal of 1051879815 is 5189781501.

It is not a de Polignac number, because 1051879815 - 2¹ = 1051879813 is a prime.

It is a super-2 number, since 2×1051879815² = 2212902290408868450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051879813) 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 95 ways as a sum of consecutive naturals, for example, 353524 + ... + 356486.

It is an arithmetic number, because the mean of its divisors is an integer number (23119200).

Almost surely, 2^1051879815 is an apocalyptic number.

1051879815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1051879815 is an abundant number, since it is smaller than the sum of its proper divisors (1167563385).

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

1051879815 is a wasteful number, since it uses less digits than its factorization.

1051879815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018 (or 3001 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 45.

The square root of 1051879815 is about 32432.6966963896. The cubic root of 1051879815 is about 1017.0025466706.

The spelling of 1051879815 in words is "one billion, fifty-one million, eight hundred seventy-nine thousand, eight hundred fifteen".