309548431352 has 32 divisors (see below), whose sum is σ = 614572045200. Its totient is φ = 145663363584.

The previous prime is 309548431249. The next prime is 309548431391. The reversal of 309548431352 is 253134845903.

It is a junction number, because it is equal to n+sod(n) for n = 309548431297 and 309548431306.

It is a congruent number.

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, 4534223 + ... + 4601985.

Almost surely, 2^309548431352 is an apocalyptic number.

It is an amenable number.

309548431352 is a deficient number, since it is larger than the sum of its proper divisors (305023613848).

309548431352 is a wasteful number, since it uses less digits than its factorization.

309548431352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101375 (or 101371 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 309548431352 in words is "three hundred nine billion, five hundred forty-eight million, four hundred thirty-one thousand, three hundred fifty-two".