278077084012 has 24 divisors (see below), whose sum is σ = 598935258656. Its totient is φ = 110008516608.

The previous prime is 278077084001. The next prime is 278077084067. The reversal of 278077084012 is 210480770872.

It is a super-2 number, since 2×278077084012² (a number of 24 digits) contains 22 as substring.

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, 381973653 + ... + 381974380.

Almost surely, 2^278077084012 is an apocalyptic number.

It is an amenable number.

278077084012 is an abundant number, since it is smaller than the sum of its proper divisors (320858174644).

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

278077084012 is a wasteful number, since it uses less digits than its factorization.

278077084012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763948057 (or 763948055 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 46.

The spelling of 278077084012 in words is "two hundred seventy-eight billion, seventy-seven million, eighty-four thousand, twelve".