278696945602 has 16 divisors (see below), whose sum is σ = 423358185600. Its totient is φ = 137577726000.

The previous prime is 278696945591. The next prime is 278696945689. The reversal of 278696945602 is 206549696872.

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, 4904352 + ... + 4960852.

It is an arithmetic number, because the mean of its divisors is an integer number (26459886600).

Almost surely, 2^278696945602 is an apocalyptic number.

278696945602 is a deficient number, since it is larger than the sum of its proper divisors (144661239998).

278696945602 is a wasteful number, since it uses less digits than its factorization.

278696945602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87801.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 278696945602 in words is "two hundred seventy-eight billion, six hundred ninety-six million, nine hundred forty-five thousand, six hundred two".