15977680486 has 8 divisors (see below), whose sum is σ = 25376316120. Its totient is φ = 7518908448.

The previous prime is 15977680451. The next prime is 15977680487. The reversal of 15977680486 is 68408677951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15977680487) 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, 234965856 + ... + 234965923.

It is an arithmetic number, because the mean of its divisors is an integer number (3172039515).

Almost surely, 2^15977680486 is an apocalyptic number.

15977680486 is a deficient number, since it is larger than the sum of its proper divisors (9398635634).

15977680486 is a wasteful number, since it uses less digits than its factorization.

15977680486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469931798.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 15977680486 in words is "fifteen billion, nine hundred seventy-seven million, six hundred eighty thousand, four hundred eighty-six".