12072761320 has 32 divisors (see below), whose sum is σ = 27609025320. Its totient is φ = 4749937920.

The previous prime is 12072761317. The next prime is 12072761357. The reversal of 12072761320 is 2316727021.

It can be written as a sum of positive squares in 4 ways, for example, as 4669535556 + 7403225764 = 68334^2 + 86042^2 .

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, 2471487 + ... + 2476366.

Almost surely, 2^12072761320 is an apocalyptic number.

12072761320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12072761320 is an abundant number, since it is smaller than the sum of its proper divisors (15536264000).

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

12072761320 is a wasteful number, since it uses less digits than its factorization.

12072761320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947925 (or 4947921 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 12072761320 in words is "twelve billion, seventy-two million, seven hundred sixty-one thousand, three hundred twenty".