345402742520 has 48 divisors (see below), whose sum is σ = 854229521880. Its totient is φ = 125600995520.

The previous prime is 345402742483. The next prime is 345402742537. The reversal of 345402742520 is 25247204543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35677262 + ... + 35686941.

Almost surely, 2^345402742520 is an apocalyptic number.

It is an amenable number.

345402742520 is an abundant number, since it is smaller than the sum of its proper divisors (508826779360).

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

345402742520 is a wasteful number, since it uses less digits than its factorization.

345402742520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71364236 (or 71364221 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 38.

The spelling of 345402742520 in words is "three hundred forty-five billion, four hundred two million, seven hundred forty-two thousand, five hundred twenty".