280379733112 has 64 divisors (see below), whose sum is σ = 535597920000. Its totient is φ = 137570923776.

The previous prime is 280379733107. The next prime is 280379733113. The reversal of 280379733112 is 211337973082.

It is a happy number.

It is a super-2 number, since 2×280379733112² (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 (280379733113) 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, 275151339 + ... + 275152357.

It is an arithmetic number, because the mean of its divisors is an integer number (8368717500).

Almost surely, 2^280379733112 is an apocalyptic number.

It is an amenable number.

280379733112 is a deficient number, since it is larger than the sum of its proper divisors (255218186888).

280379733112 is a wasteful number, since it uses less digits than its factorization.

280379733112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 280379733112 in words is "two hundred eighty billion, three hundred seventy-nine million, seven hundred thirty-three thousand, one hundred twelve".