355687428096631 has 2 divisors, whose sum is σ = 355687428096632. Its totient is φ = 355687428096630.

The previous prime is 355687428096599. The next prime is 355687428096739. The reversal of 355687428096631 is 136690824786553.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355687428096631 - 2⁵ = 355687428096599 is a prime.

It is a super-2 number, since 2×355687428096631² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355687428096031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177843714048315 + 177843714048316.

It is an arithmetic number, because the mean of its divisors is an integer number (177843714048316).

It is a 1-persistent number, because it is pandigital, but 2⋅355687428096631 = 711374856193262 is not.

Almost surely, 2^{355687428096631} is an apocalyptic number.

355687428096631 is a deficient number, since it is larger than the sum of its proper divisors (1).

355687428096631 is an equidigital number, since it uses as much as digits as its factorization.

355687428096631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1567641600, while the sum is 73.

The spelling of 355687428096631 in words is "three hundred fifty-five trillion, six hundred eighty-seven billion, four hundred twenty-eight million, ninety-six thousand, six hundred thirty-one".