977357533631 has 2 divisors, whose sum is σ = 977357533632. Its totient is φ = 977357533630.

The previous prime is 977357533619. The next prime is 977357533639. The reversal of 977357533631 is 136335753779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 977357533631 - 2⁶ = 977357533567 is a prime.

It is a super-2 number, since 2×977357533631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977357533639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488678766815 + 488678766816.

It is an arithmetic number, because the mean of its divisors is an integer number (488678766816).

Almost surely, 2^977357533631 is an apocalyptic number.

977357533631 is a deficient number, since it is larger than the sum of its proper divisors (1).

977357533631 is an equidigital number, since it uses as much as digits as its factorization.

977357533631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37507050, while the sum is 59.

The spelling of 977357533631 in words is "nine hundred seventy-seven billion, three hundred fifty-seven million, five hundred thirty-three thousand, six hundred thirty-one".