12765484380 has 96 divisors (see below), whose sum is σ = 40688137728. Its totient is φ = 2960108800.

The previous prime is 12765484379. The next prime is 12765484421. The reversal of 12765484380 is 8348456721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405291 + ... + 435650.

It is an arithmetic number, because the mean of its divisors is an integer number (423834768).

Almost surely, 2^12765484380 is an apocalyptic number.

12765484380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12765484380 is an abundant number, since it is smaller than the sum of its proper divisors (27922653348).

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

12765484380 is a wasteful number, since it uses less digits than its factorization.

12765484380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840987 (or 840985 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 12765484380 in words is "twelve billion, seven hundred sixty-five million, four hundred eighty-four thousand, three hundred eighty".