345278654975 has 24 divisors (see below), whose sum is σ = 430492512192. Its totient is φ = 274709606400.

The previous prime is 345278654971. The next prime is 345278655037. The reversal of 345278654975 is 579456872543.

It is not a de Polignac number, because 345278654975 - 2² = 345278654971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345278654971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20029610 + ... + 20046840.

It is an arithmetic number, because the mean of its divisors is an integer number (17937188008).

Almost surely, 2^345278654975 is an apocalyptic number.

345278654975 is a deficient number, since it is larger than the sum of its proper divisors (85213857217).

345278654975 is a wasteful number, since it uses less digits than its factorization.

345278654975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21587 (or 21582 counting only the distinct ones).

The product of its digits is 254016000, while the sum is 65.

The spelling of 345278654975 in words is "three hundred forty-five billion, two hundred seventy-eight million, six hundred fifty-four thousand, nine hundred seventy-five".