278940013948 has 12 divisors (see below), whose sum is σ = 488230062880. Its totient is φ = 139445710272.

The previous prime is 278940013907. The next prime is 278940013951. The reversal of 278940013948 is 849310049872.

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, 6048333 + ... + 6094276.

Almost surely, 2^278940013948 is an apocalyptic number.

It is an amenable number.

278940013948 is a deficient number, since it is larger than the sum of its proper divisors (209290048932).

278940013948 is a wasteful number, since it uses less digits than its factorization.

278940013948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12148356 (or 12148354 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 278940013948 in words is "two hundred seventy-eight billion, nine hundred forty million, thirteen thousand, nine hundred forty-eight".