101439904972 has 12 divisors (see below), whose sum is σ = 202879810000. Its totient is φ = 43474244976.

The previous prime is 101439904931. The next prime is 101439904991. The reversal of 101439904972 is 279409934101.

101439904972 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811426847 + ... + 1811426902.

Almost surely, 2^101439904972 is an apocalyptic number.

It is an amenable number.

101439904972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

101439904972 is a wasteful number, since it uses less digits than its factorization.

101439904972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622853760 (or 3622853758 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 101439904972 in words is "one hundred one billion, four hundred thirty-nine million, nine hundred four thousand, nine hundred seventy-two".