345673015631 has 2 divisors, whose sum is σ = 345673015632. Its totient is φ = 345673015630.

The previous prime is 345673015591. The next prime is 345673015687. The reversal of 345673015631 is 136510376543.

It is a weak prime.

It is an emirp because it is prime and its reverse (136510376543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345673015631 - 2¹⁰ = 345673014607 is a prime.

It is a super-2 number, since 2×345673015631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345673015531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172836507815 + 172836507816.

It is an arithmetic number, because the mean of its divisors is an integer number (172836507816).

Almost surely, 2^345673015631 is an apocalyptic number.

345673015631 is a deficient number, since it is larger than the sum of its proper divisors (1).

345673015631 is an equidigital number, since it uses as much as digits as its factorization.

345673015631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 345673015631 in words is "three hundred forty-five billion, six hundred seventy-three million, fifteen thousand, six hundred thirty-one".