309961596709074 has 32 divisors (see below), whose sum is σ = 652556285948160. Its totient is φ = 97881776082000.

The previous prime is 309961596709021. The next prime is 309961596709081. The reversal of 309961596709074 is 470907695169903.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 309961596708987 and 309961596709005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1941769 + ... + 24973859.

It is an arithmetic number, because the mean of its divisors is an integer number (20392383935880).

Almost surely, 2^{309961596709074} is an apocalyptic number.

309961596709074 is an abundant number, since it is smaller than the sum of its proper divisors (342594689239086).

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

309961596709074 is a wasteful number, since it uses less digits than its factorization.

309961596709074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23150166.

The product of its (nonzero) digits is 694416240, while the sum is 75.

The spelling of 309961596709074 in words is "three hundred nine trillion, nine hundred sixty-one billion, five hundred ninety-six million, seven hundred nine thousand, seventy-four".