15730142861 has 8 divisors (see below), whose sum is σ = 16121435064. Its totient is φ = 15339214080.

The previous prime is 15730142839. The next prime is 15730142881. The reversal of 15730142861 is 16824103751.

It can be written as a sum of positive squares in 4 ways, for example, as 2960012836 + 12770130025 = 54406^2 + 113005^2 .

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 15730142861 - 2³⁰ = 14656401037 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 (15730142801) 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, 2150 + ... + 177383.

It is an arithmetic number, because the mean of its divisors is an integer number (2015179383).

Almost surely, 2^15730142861 is an apocalyptic number.

It is an amenable number.

15730142861 is a deficient number, since it is larger than the sum of its proper divisors (391292203).

15730142861 is a wasteful number, since it uses less digits than its factorization.

15730142861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181711.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 15730142861 in words is "fifteen billion, seven hundred thirty million, one hundred forty-two thousand, eight hundred sixty-one".