278579365012 has 48 divisors (see below), whose sum is σ = 537795986112. Its totient is φ = 125451406080.

The previous prime is 278579365003. The next prime is 278579365013. The reversal of 278579365012 is 210563975872.

It is a super-2 number, since 2×278579365012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278579365013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2051712 + ... + 2183272.

It is an arithmetic number, because the mean of its divisors is an integer number (11204083044).

Almost surely, 2^278579365012 is an apocalyptic number.

It is an amenable number.

278579365012 is a deficient number, since it is larger than the sum of its proper divisors (259216621100).

278579365012 is a wasteful number, since it uses less digits than its factorization.

278579365012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132568 (or 132566 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 278579365012 in words is "two hundred seventy-eight billion, five hundred seventy-nine million, three hundred sixty-five thousand, twelve".