12977913340 has 48 divisors (see below), whose sum is σ = 31195648512. Its totient is φ = 4442619456.

The previous prime is 12977913293. The next prime is 12977913343. The reversal of 12977913340 is 4331977921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12977913343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17937 + ... + 162103.

It is an arithmetic number, because the mean of its divisors is an integer number (649909344).

Almost surely, 2^12977913340 is an apocalyptic number.

12977913340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12977913340 is an abundant number, since it is smaller than the sum of its proper divisors (18217735172).

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

12977913340 is a wasteful number, since it uses less digits than its factorization.

12977913340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144826 (or 144824 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 12977913340 in words is "twelve billion, nine hundred seventy-seven million, nine hundred thirteen thousand, three hundred forty".