345401136872 has 32 divisors (see below), whose sum is σ = 707360921280. Its totient is φ = 156809717760.

The previous prime is 345401136791. The next prime is 345401136881. The reversal of 345401136872 is 278631104543.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2312153 + ... + 2457000.

It is an arithmetic number, because the mean of its divisors is an integer number (22105028790).

Almost surely, 2^345401136872 is an apocalyptic number.

It is an amenable number.

345401136872 is an abundant number, since it is smaller than the sum of its proper divisors (361959784408).

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

345401136872 is a wasteful number, since it uses less digits than its factorization.

345401136872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769993 (or 4769989 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 345401136872 in words is "three hundred forty-five billion, four hundred one million, one hundred thirty-six thousand, eight hundred seventy-two".