1012638875 has 16 divisors (see below), whose sum is σ = 1266575232. Its totient is φ = 808315200.

The previous prime is 1012638859. The next prime is 1012638899. The reversal of 1012638875 is 5788362101.

It is not a de Polignac number, because 1012638875 - 2⁴ = 1012638859 is a prime.

It is a super-2 number, since 2×1012638875² = 2050874982322531250, which contains 22 as substring.

It is a Duffinian number.

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, 49127 + ... + 66623.

It is an arithmetic number, because the mean of its divisors is an integer number (79160952).

Almost surely, 2^1012638875 is an apocalyptic number.

1012638875 is a deficient number, since it is larger than the sum of its proper divisors (253936357).

1012638875 is an equidigital number, since it uses as much as digits as its factorization.

1012638875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17975 (or 17965 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1012638875 is about 31821.9872886657. The cubic root of 1012638875 is about 1004.1953329014.

The spelling of 1012638875 in words is "one billion, twelve million, six hundred thirty-eight thousand, eight hundred seventy-five".