15980357027 has 4 divisors (see below), whose sum is σ = 15981135456. Its totient is φ = 15979578600.

The previous prime is 15980357023. The next prime is 15980357033. The reversal of 15980357027 is 72075308951.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15980357027 - 2² = 15980357023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15980357023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357563 + ... + 399764.

It is an arithmetic number, because the mean of its divisors is an integer number (3995283864).

Almost surely, 2^15980357027 is an apocalyptic number.

15980357027 is a deficient number, since it is larger than the sum of its proper divisors (778429).

15980357027 is an equidigital number, since it uses as much as digits as its factorization.

15980357027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778428.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 15980357027 in words is "fifteen billion, nine hundred eighty million, three hundred fifty-seven thousand, twenty-seven".