345973403979 has 32 divisors (see below), whose sum is σ = 585806791680. Its totient is φ = 197688384000.

The previous prime is 345973403977. The next prime is 345973404001. The reversal of 345973403979 is 979304379543.

345973403979 is a `hidden beast` number, since 3 + 4 + 597 + 3 + 4 + 0 + 39 + 7 + 9 = 666.

It is not a de Polignac number, because 345973403979 - 2¹ = 345973403977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (345973403977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4602859 + ... + 4677419.

It is an arithmetic number, because the mean of its divisors is an integer number (18306462240).

Almost surely, 2^345973403979 is an apocalyptic number.

345973403979 is a deficient number, since it is larger than the sum of its proper divisors (239833387701).

345973403979 is a wasteful number, since it uses less digits than its factorization.

345973403979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99128 (or 99122 counting only the distinct ones).

The product of its (nonzero) digits is 77157360, while the sum is 63.

The spelling of 345973403979 in words is "three hundred forty-five billion, nine hundred seventy-three million, four hundred three thousand, nine hundred seventy-nine".