38939396410690 has 8 divisors (see below), whose sum is σ = 70090913539260. Its totient is φ = 15575758564272.

The previous prime is 38939396410573. The next prime is 38939396410709. The reversal of 38939396410690 is 9601469393983.

It can be written as a sum of positive squares in 2 ways, for example, as 34636273497081 + 4303122913609 = 5885259^2 + 2074397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×38939396410690² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1946969820525 + ... + 1946969820544.

Almost surely, 2^{38939396410690} is an apocalyptic number.

38939396410690 is a deficient number, since it is larger than the sum of its proper divisors (31151517128570).

38939396410690 is a wasteful number, since it uses less digits than its factorization.

38939396410690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893939641076.

The product of its (nonzero) digits is 204073344, while the sum is 70.

The spelling of 38939396410690 in words is "thirty-eight trillion, nine hundred thirty-nine billion, three hundred ninety-six million, four hundred ten thousand, six hundred ninety".