2153926575817 has 2 divisors, whose sum is σ = 2153926575818. Its totient is φ = 2153926575816.

The previous prime is 2153926575769. The next prime is 2153926575863. The reversal of 2153926575817 is 7185756293512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1474388491536 + 679538084281 = 1214244^2 + 824341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153926575817 is a prime.

It is not a weakly prime, because it can be changed into another prime (2153926575217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076963287908 + 1076963287909.

It is an arithmetic number, because the mean of its divisors is an integer number (1076963287909).

Almost surely, 2^{2153926575817} is an apocalyptic number.

It is an amenable number.

2153926575817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153926575817 is an equidigital number, since it uses as much as digits as its factorization.

2153926575817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752000, while the sum is 61.

The spelling of 2153926575817 in words is "two trillion, one hundred fifty-three billion, nine hundred twenty-six million, five hundred seventy-five thousand, eight hundred seventeen".