2617556320231 has 2 divisors, whose sum is σ = 2617556320232. Its totient is φ = 2617556320230.

The previous prime is 2617556320151. The next prime is 2617556320237. The reversal of 2617556320231 is 1320236557162.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2617556320231 - 2⁷ = 2617556320103 is a prime.

It is a super-2 number, since 2×2617556320231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2617556320237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308778160115 + 1308778160116.

It is an arithmetic number, because the mean of its divisors is an integer number (1308778160116).

Almost surely, 2^{2617556320231} is an apocalyptic number.

2617556320231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2617556320231 is an equidigital number, since it uses as much as digits as its factorization.

2617556320231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 2617556320231 in words is "two trillion, six hundred seventeen billion, five hundred fifty-six million, three hundred twenty thousand, two hundred thirty-one".