309134120790 has 32 divisors (see below), whose sum is σ = 809369335296. Its totient is φ = 74941604960.

The previous prime is 309134120773. The next prime is 309134120791. The reversal of 309134120790 is 97021431903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309134120791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468384702 + ... + 468385361.

It is an arithmetic number, because the mean of its divisors is an integer number (25292791728).

Almost surely, 2^309134120790 is an apocalyptic number.

309134120790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

309134120790 is an abundant number, since it is smaller than the sum of its proper divisors (500235214506).

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

309134120790 is a wasteful number, since it uses less digits than its factorization.

309134120790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936770084.

The product of its (nonzero) digits is 40824, while the sum is 39.

It can be divided in two parts, 309134 and 120790, that added together give a palindrome (429924).

The spelling of 309134120790 in words is "three hundred nine billion, one hundred thirty-four million, one hundred twenty thousand, seven hundred ninety".