15150728723 has 16 divisors (see below), whose sum is σ = 16508772000. Its totient is φ = 13820378880.

The previous prime is 15150728711. The next prime is 15150728741. The reversal of 15150728723 is 32782705151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15150728723 is a prime.

It is a super-3 number, since 3×15150728723³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15150728743) 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, 3481553 + ... + 3485901.

It is an arithmetic number, because the mean of its divisors is an integer number (1031798250).

Almost surely, 2^15150728723 is an apocalyptic number.

15150728723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15150728723 is a deficient number, since it is larger than the sum of its proper divisors (1358043277).

15150728723 is a wasteful number, since it uses less digits than its factorization.

15150728723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 15150728723 in words is "fifteen billion, one hundred fifty million, seven hundred twenty-eight thousand, seven hundred twenty-three".