308871138272 has 24 divisors (see below), whose sum is σ = 612528675696. Its totient is φ = 153308300032.

The previous prime is 308871138269. The next prime is 308871138307. The reversal of 308871138272 is 272831178803.

It is a self number, because there is not a number n which added to its sum of digits gives 308871138272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35222708 + ... + 35231475.

It is an arithmetic number, because the mean of its divisors is an integer number (25522028154).

Almost surely, 2^308871138272 is an apocalyptic number.

308871138272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

308871138272 is a deficient number, since it is larger than the sum of its proper divisors (303657537424).

308871138272 is a wasteful number, since it uses less digits than its factorization.

308871138272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70454330 (or 70454322 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 308871138272 in words is "three hundred eight billion, eight hundred seventy-one million, one hundred thirty-eight thousand, two hundred seventy-two".