39497671072 has 48 divisors (see below), whose sum is σ = 82372340232. Its totient is φ = 18578759680.

The previous prime is 39497671069. The next prime is 39497671097. The reversal of 39497671072 is 27017679493.

It can be written as a sum of positive squares in 4 ways, for example, as 21165594256 + 18332076816 = 145484^2 + 135396^2 .

It is a super-2 number, since 2×39497671072² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286622 + ... + 1316962.

Almost surely, 2^39497671072 is an apocalyptic number.

39497671072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39497671072 is an abundant number, since it is smaller than the sum of its proper divisors (42874669160).

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

39497671072 is a wasteful number, since it uses less digits than its factorization.

39497671072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32761 (or 32753 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 55.

The spelling of 39497671072 in words is "thirty-nine billion, four hundred ninety-seven million, six hundred seventy-one thousand, seventy-two".