39321678490 has 36 divisors (see below), whose sum is σ = 71845517214. Its totient is φ = 15495150528.

The previous prime is 39321678481. The next prime is 39321678509. The reversal of 39321678490 is 9487612393.

It can be written as a sum of positive squares in 3 ways, for example, as 33476923089 + 5844755401 = 182967^2 + 76451^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45775681 + ... + 45776539.

Almost surely, 2^39321678490 is an apocalyptic number.

39321678490 is a deficient number, since it is larger than the sum of its proper divisors (32523838724).

39321678490 is an frugal number, since it uses more digits than its factorization.

39321678490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 39321678490 in words is "thirty-nine billion, three hundred twenty-one million, six hundred seventy-eight thousand, four hundred ninety".