2038555557757 has 4 divisors (see below), whose sum is σ = 2108850577020. Its totient is φ = 1968260538496.

The previous prime is 2038555557697. The next prime is 2038555557791. The reversal of 2038555557757 is 7577555558302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1280504980836 + 758050576921 = 1131594^2 + 870661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2038555557757 - 2⁷ = 2038555557629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2038555557557) 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, 35147509588 + ... + 35147509645.

It is an arithmetic number, because the mean of its divisors is an integer number (527212644255).

Almost surely, 2^{2038555557757} is an apocalyptic number.

It is an amenable number.

2038555557757 is a deficient number, since it is larger than the sum of its proper divisors (70295019263).

2038555557757 is an equidigital number, since it uses as much as digits as its factorization.

2038555557757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70295019262.

The product of its (nonzero) digits is 257250000, while the sum is 64.

The spelling of 2038555557757 in words is "two trillion, thirty-eight billion, five hundred fifty-five million, five hundred fifty-seven thousand, seven hundred fifty-seven".