15139020077 has 8 divisors (see below), whose sum is σ = 15523377720. Its totient is φ = 14759055360.

The previous prime is 15139020073. The next prime is 15139020119. The reversal of 15139020077 is 77002093151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1189284196 + 13949735881 = 34486^2 + 118109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15139020077 - 2² = 15139020073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15139020073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091252 + ... + 1105037.

It is an arithmetic number, because the mean of its divisors is an integer number (1940422215).

Almost surely, 2^15139020077 is an apocalyptic number.

It is an amenable number.

15139020077 is a deficient number, since it is larger than the sum of its proper divisors (384357643).

15139020077 is a wasteful number, since it uses less digits than its factorization.

15139020077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196463.

The product of its (nonzero) digits is 13230, while the sum is 35.

The spelling of 15139020077 in words is "fifteen billion, one hundred thirty-nine million, twenty thousand, seventy-seven".