345425672731 has 2 divisors, whose sum is σ = 345425672732. Its totient is φ = 345425672730.

The previous prime is 345425672717. The next prime is 345425672771. The reversal of 345425672731 is 137276524543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345425672731 - 2⁵ = 345425672699 is a prime.

It is a super-2 number, since 2×345425672731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345425672771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172712836365 + 172712836366.

It is an arithmetic number, because the mean of its divisors is an integer number (172712836366).

Almost surely, 2^345425672731 is an apocalyptic number.

345425672731 is a deficient number, since it is larger than the sum of its proper divisors (1).

345425672731 is an equidigital number, since it uses as much as digits as its factorization.

345425672731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 49.

The spelling of 345425672731 in words is "three hundred forty-five billion, four hundred twenty-five million, six hundred seventy-two thousand, seven hundred thirty-one".