38620805037691 has 4 divisors (see below), whose sum is σ = 38624004519984. Its totient is φ = 38617605555400.

The previous prime is 38620805037667. The next prime is 38620805037709. The reversal of 38620805037691 is 19673050802683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38620805037691 is a prime.

It is a super-2 number, since 2×38620805037691² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38620805037601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1599723040 + ... + 1599747181.

It is an arithmetic number, because the mean of its divisors is an integer number (9656001129996).

Almost surely, 2^{38620805037691} is an apocalyptic number.

38620805037691 is a deficient number, since it is larger than the sum of its proper divisors (3199482293).

38620805037691 is a wasteful number, since it uses less digits than its factorization.

38620805037691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199482292.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 38620805037691 in words is "thirty-eight trillion, six hundred twenty billion, eight hundred five million, thirty-seven thousand, six hundred ninety-one".