309749737747112 has 32 divisors (see below), whose sum is σ = 634791368416800. Its totient is φ = 140827664919744.

The previous prime is 309749737747103. The next prime is 309749737747133. The reversal of 309749737747112 is 211747737947903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22226581562 + ... + 22226595497.

It is an arithmetic number, because the mean of its divisors is an integer number (19837230263025).

Almost surely, 2^{309749737747112} is an apocalyptic number.

It is an amenable number.

309749737747112 is an abundant number, since it is smaller than the sum of its proper divisors (325041630669688).

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

309749737747112 is a wasteful number, since it uses less digits than its factorization.

309749737747112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44453177145 (or 44453177141 counting only the distinct ones).

The product of its (nonzero) digits is 392073696, while the sum is 71.

The spelling of 309749737747112 in words is "three hundred nine trillion, seven hundred forty-nine billion, seven hundred thirty-seven million, seven hundred forty-seven thousand, one hundred twelve".