311409992448 has 90 divisors (see below), whose sum is σ = 928568312364. Its totient is φ = 103803323904.

The previous prime is 311409992417. The next prime is 311409992479. The reversal of 311409992448 is 844299904113.

It is an interprime number because it is at equal distance from previous prime (311409992417) and next prime (311409992479).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 311409992394 and 311409992403.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7488186 + ... + 7529657.

Almost surely, 2^311409992448 is an apocalyptic number.

It is an amenable number.

311409992448 is an abundant number, since it is smaller than the sum of its proper divisors (617158319916).

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

311409992448 is an equidigital number, since it uses as much as digits as its factorization.

311409992448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017871 (or 15017848 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 311409992448 in words is "three hundred eleven billion, four hundred nine million, nine hundred ninety-two thousand, four hundred forty-eight".