6877582361557 has 2 divisors, whose sum is σ = 6877582361558. Its totient is φ = 6877582361556.

The previous prime is 6877582361527. The next prime is 6877582361591. The reversal of 6877582361557 is 7551632857786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6705246123601 + 172336237956 = 2589449^2 + 415134^2 .

It is a cyclic number.

It is not a de Polignac number, because 6877582361557 - 2¹¹ = 6877582359509 is a prime.

It is a super-2 number, since 2×6877582361557² (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 (6877582361527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3438791180778 + 3438791180779.

It is an arithmetic number, because the mean of its divisors is an integer number (3438791180779).

Almost surely, 2^{6877582361557} is an apocalyptic number.

It is an amenable number.

6877582361557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6877582361557 is an equidigital number, since it uses as much as digits as its factorization.

6877582361557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704000, while the sum is 70.

The spelling of 6877582361557 in words is "six trillion, eight hundred seventy-seven billion, five hundred eighty-two million, three hundred sixty-one thousand, five hundred fifty-seven".