106639973928 has 80 divisors (see below), whose sum is σ = 298764993780. Its totient is φ = 35537812992.

The previous prime is 106639973911. The next prime is 106639973989. The reversal of 106639973928 is 829379936601.

It can be written as a sum of positive squares in 2 ways, for example, as 104498320644 + 2141653284 = 323262^2 + 46278^2 .

It is a super-2 number, since 2×106639973928² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2908800 + ... + 2945232.

Almost surely, 2^106639973928 is an apocalyptic number.

106639973928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

106639973928 is an abundant number, since it is smaller than the sum of its proper divisors (192125019852).

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

106639973928 is a wasteful number, since it uses less digits than its factorization.

106639973928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40968 (or 40955 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The spelling of 106639973928 in words is "one hundred six billion, six hundred thirty-nine million, nine hundred seventy-three thousand, nine hundred twenty-eight".