15715728573 has 16 divisors (see below), whose sum is σ = 21677931072. Its totient is φ = 10120400000.

The previous prime is 15715728551. The next prime is 15715728583. The reversal of 15715728573 is 37582751751.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 15715728573 - 2¹³ = 15715720381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15715728583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620103 + ... + 644948.

It is an arithmetic number, because the mean of its divisors is an integer number (1354870692).

Almost surely, 2^15715728573 is an apocalyptic number.

It is an amenable number.

15715728573 is a deficient number, since it is larger than the sum of its proper divisors (5962202499).

15715728573 is a wasteful number, since it uses less digits than its factorization.

15715728573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265196.

The product of its digits is 2058000, while the sum is 51.

The spelling of 15715728573 in words is "fifteen billion, seven hundred fifteen million, seven hundred twenty-eight thousand, five hundred seventy-three".