15777871054 has 96 divisors (see below), whose sum is σ = 29096244576. Its totient is φ = 6340515840.

The previous prime is 15777871009. The next prime is 15777871061. The reversal of 15777871054 is 45017877751.

It is a junction number, because it is equal to n+sod(n) for n = 15777870992 and 15777871010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18496492 + ... + 18497344.

It is an arithmetic number, because the mean of its divisors is an integer number (303085881).

Almost surely, 2^15777871054 is an apocalyptic number.

15777871054 is a deficient number, since it is larger than the sum of its proper divisors (13318373522).

15777871054 is a wasteful number, since it uses less digits than its factorization.

15777871054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 1920800, while the sum is 52.

The spelling of 15777871054 in words is "fifteen billion, seven hundred seventy-seven million, eight hundred seventy-one thousand, fifty-four".