15876400485 has 64 divisors (see below), whose sum is σ = 29066563584. Its totient is φ = 7330118400.

The previous prime is 15876400457. The next prime is 15876400489. The reversal of 15876400485 is 58400467851.

It is not a de Polignac number, because 15876400485 - 2¹⁶ = 15876334949 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15876400489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 259270 + ... + 314600.

It is an arithmetic number, because the mean of its divisors is an integer number (454165056).

Almost surely, 2^15876400485 is an apocalyptic number.

15876400485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15876400485 is a deficient number, since it is larger than the sum of its proper divisors (13190163099).

15876400485 is a wasteful number, since it uses less digits than its factorization.

15876400485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55434.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 15876400485 in words is "fifteen billion, eight hundred seventy-six million, four hundred thousand, four hundred eighty-five".