15072793661 has 16 divisors (see below), whose sum is σ = 15456528000. Its totient is φ = 14693679168.

The previous prime is 15072793627. The next prime is 15072793667. The reversal of 15072793661 is 16639727051.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 15072793661 - 2¹⁴ = 15072777277 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 (15072793667) 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, 7796651 + ... + 7798583.

It is an arithmetic number, because the mean of its divisors is an integer number (966033000).

Almost surely, 2^15072793661 is an apocalyptic number.

It is an amenable number.

15072793661 is a deficient number, since it is larger than the sum of its proper divisors (383734339).

15072793661 is a wasteful number, since it uses less digits than its factorization.

15072793661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 15072793661 in words is "fifteen billion, seventy-two million, seven hundred ninety-three thousand, six hundred sixty-one".