127779374912 has 56 divisors (see below), whose sum is σ = 289870408320. Its totient is φ = 54746519040.

The previous prime is 127779374897. The next prime is 127779374939. The reversal of 127779374912 is 219473977721.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

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, 1554362 + ... + 1634502.

Almost surely, 2^127779374912 is an apocalyptic number.

It is an amenable number.

127779374912 is an abundant number, since it is smaller than the sum of its proper divisors (162091033408).

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

127779374912 is an equidigital number, since it uses as much as digits as its factorization.

127779374912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83719 (or 83709 counting only the distinct ones).

The product of its digits is 9335088, while the sum is 59.

The spelling of 127779374912 in words is "one hundred twenty-seven billion, seven hundred seventy-nine million, three hundred seventy-four thousand, nine hundred twelve".