12777993410 has 32 divisors (see below), whose sum is σ = 28308172032. Its totient is φ = 4044024000.

The previous prime is 12777993383. The next prime is 12777993433. The reversal of 12777993410 is 1439977721.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7019966 + ... + 7021785.

It is an arithmetic number, because the mean of its divisors is an integer number (884630376).

Almost surely, 2^12777993410 is an apocalyptic number.

12777993410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12777993410 is an abundant number, since it is smaller than the sum of its proper divisors (15530178622).

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

12777993410 is a wasteful number, since it uses less digits than its factorization.

12777993410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041778.

The product of its (nonzero) digits is 666792, while the sum is 50.

The spelling of 12777993410 in words is "twelve billion, seven hundred seventy-seven million, nine hundred ninety-three thousand, four hundred ten".