2038078221657 has 8 divisors (see below), whose sum is σ = 2768710037184. Its totient is φ = 1333082610288.

The previous prime is 2038078221631. The next prime is 2038078221659. The reversal of 2038078221657 is 7561228708302.

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

It is not a de Polignac number, because 2038078221657 - 2¹¹ = 2038078219609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2038078221659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6409050853 + ... + 6409051170.

It is an arithmetic number, because the mean of its divisors is an integer number (346088754648).

Almost surely, 2^{2038078221657} is an apocalyptic number.

It is an amenable number.

2038078221657 is a deficient number, since it is larger than the sum of its proper divisors (730631815527).

2038078221657 is a wasteful number, since it uses less digits than its factorization.

2038078221657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12818102079.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 2038078221657 in words is "two trillion, thirty-eight billion, seventy-eight million, two hundred twenty-one thousand, six hundred fifty-seven".