32145739904 has 16 divisors (see below), whose sum is σ = 64040341470. Its totient is φ = 16072869888.

The previous prime is 32145739883. The next prime is 32145739937. The reversal of 32145739904 is 40993754123.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29120739904 + 3025000000 = 170648^2 + 55000^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125569169 + ... + 125569424.

Almost surely, 2^32145739904 is an apocalyptic number.

It is an amenable number.

32145739904 is a deficient number, since it is larger than the sum of its proper divisors (31894601566).

32145739904 is an equidigital number, since it uses as much as digits as its factorization.

32145739904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251138607 (or 251138595 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 32145739904 in words is "thirty-two billion, one hundred forty-five million, seven hundred thirty-nine thousand, nine hundred four".