12777500265250 has 64 divisors (see below), whose sum is σ = 27337594452480. Its totient is φ = 4380689716800.

The previous prime is 12777500265227. The next prime is 12777500265301. The reversal of 12777500265250 is 5256200577721.

It is a junction number, because it is equal to n+sod(n) for n = 12777500265194 and 12777500265203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50987256 + ... + 51237244.

It is an arithmetic number, because the mean of its divisors is an integer number (427149913320).

Almost surely, 2^{12777500265250} is an apocalyptic number.

12777500265250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12777500265250 is an abundant number, since it is smaller than the sum of its proper divisors (14560094187230).

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

12777500265250 is a wasteful number, since it uses less digits than its factorization.

12777500265250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279220 (or 279210 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 49.

The spelling of 12777500265250 in words is "twelve trillion, seven hundred seventy-seven billion, five hundred million, two hundred sixty-five thousand, two hundred fifty".