345400835772 has 12 divisors (see below), whose sum is σ = 805935283496. Its totient is φ = 115133611920.

The previous prime is 345400835771. The next prime is 345400835777. The reversal of 345400835772 is 277538004543.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×345400835772² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345400835771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14391701479 + ... + 14391701502.

Almost surely, 2^345400835772 is an apocalyptic number.

It is an amenable number.

345400835772 is an abundant number, since it is smaller than the sum of its proper divisors (460534447724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345400835772 is a wasteful number, since it uses less digits than its factorization.

345400835772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28783402988 (or 28783402986 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 345400835772 in words is "three hundred forty-five billion, four hundred million, eight hundred thirty-five thousand, seven hundred seventy-two".