354555584667631 has 2 divisors, whose sum is σ = 354555584667632. Its totient is φ = 354555584667630.

The previous prime is 354555584667623. The next prime is 354555584667667. The reversal of 354555584667631 is 136766485555453.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 354555584667631 - 2³ = 354555584667623 is a prime.

It is a super-2 number, since 2×354555584667631² (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 (354555584667601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177277792333815 + 177277792333816.

It is an arithmetic number, because the mean of its divisors is an integer number (177277792333816).

Almost surely, 2^{354555584667631} is an apocalyptic number.

354555584667631 is a deficient number, since it is larger than the sum of its proper divisors (1).

354555584667631 is an equidigital number, since it uses as much as digits as its factorization.

354555584667631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200000, while the sum is 73.

The spelling of 354555584667631 in words is "three hundred fifty-four trillion, five hundred fifty-five billion, five hundred eighty-four million, six hundred sixty-seven thousand, six hundred thirty-one".