15940308893 has 16 divisors (see below), whose sum is σ = 17178480000. Its totient is φ = 14735956992.

The previous prime is 15940308889. The next prime is 15940308929. The reversal of 15940308893 is 39880304951.

It is a cyclic number.

It is not a de Polignac number, because 15940308893 - 2² = 15940308889 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 (15940308833) 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, 1316933 + ... + 1328981.

It is an arithmetic number, because the mean of its divisors is an integer number (1073655000).

Almost surely, 2^15940308893 is an apocalyptic number.

It is an amenable number.

15940308893 is a deficient number, since it is larger than the sum of its proper divisors (1238171107).

15940308893 is a wasteful number, since it uses less digits than its factorization.

15940308893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13444.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 15940308893 in words is "fifteen billion, nine hundred forty million, three hundred eight thousand, eight hundred ninety-three".