28626897074 has 16 divisors (see below), whose sum is σ = 45771399000. Its totient is φ = 13381065984.

The previous prime is 28626897059. The next prime is 28626897113. The reversal of 28626897074 is 47079862682.

It can be written as a sum of positive squares in 4 ways, for example, as 24309487225 + 4317409849 = 155915^2 + 65707^2 .

It is a super-2 number, since 2×28626897074² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2820329 + ... + 2830460.

Almost surely, 2^28626897074 is an apocalyptic number.

28626897074 is a deficient number, since it is larger than the sum of its proper divisors (17144501926).

28626897074 is a wasteful number, since it uses less digits than its factorization.

28626897074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5650957.

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 28626897074 in words is "twenty-eight billion, six hundred twenty-six million, eight hundred ninety-seven thousand, seventy-four".