15127127777648 has 20 divisors (see below), whose sum is σ = 31032857720880. Its totient is φ = 7118648365824.

The previous prime is 15127127777603. The next prime is 15127127777651. The reversal of 15127127777648 is 84677772172151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27807219908 + ... + 27807220451.

It is an arithmetic number, because the mean of its divisors is an integer number (1551642886044).

Almost surely, 2^{15127127777648} is an apocalyptic number.

It is an amenable number.

15127127777648 is an abundant number, since it is smaller than the sum of its proper divisors (15905729943232).

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

15127127777648 is a wasteful number, since it uses less digits than its factorization.

15127127777648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55614440384 (or 55614440378 counting only the distinct ones).

The product of its digits is 64538880, while the sum is 65.

The spelling of 15127127777648 in words is "fifteen trillion, one hundred twenty-seven billion, one hundred twenty-seven million, seven hundred seventy-seven thousand, six hundred forty-eight".