15754979853 has 6 divisors (see below), whose sum is σ = 22757193134. Its totient is φ = 10503319896.

The previous prime is 15754979837. The next prime is 15754979927. The reversal of 15754979853 is 35897945751.

15754979853 is a `hidden beast` number, since 1 + 5 + 7 + 5 + 497 + 98 + 53 = 666.

15754979853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8317987209 + 7436992644 = 91203^2 + 86238^2 .

It is not a de Polignac number, because 15754979853 - 2⁴ = 15754979837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15754979803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 875276650 + ... + 875276667.

Almost surely, 2^15754979853 is an apocalyptic number.

It is an amenable number.

15754979853 is a deficient number, since it is larger than the sum of its proper divisors (7002213281).

15754979853 is a wasteful number, since it uses less digits than its factorization.

15754979853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750553323 (or 1750553320 counting only the distinct ones).

The product of its digits is 47628000, while the sum is 63.

The spelling of 15754979853 in words is "fifteen billion, seven hundred fifty-four million, nine hundred seventy-nine thousand, eight hundred fifty-three".