308641978412 has 48 divisors (see below), whose sum is σ = 574929352704. Its totient is φ = 144735120000.

The previous prime is 308641978363. The next prime is 308641978423. The reversal of 308641978412 is 214879146803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566663 + ... + 968705.

It is an arithmetic number, because the mean of its divisors is an integer number (11977694848).

Almost surely, 2^308641978412 is an apocalyptic number.

It is an amenable number.

308641978412 is a deficient number, since it is larger than the sum of its proper divisors (266287374292).

308641978412 is a wasteful number, since it uses less digits than its factorization.

308641978412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402270 (or 402268 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 308641978412 in words is "three hundred eight billion, six hundred forty-one million, nine hundred seventy-eight thousand, four hundred twelve".