15847509157 has 16 divisors (see below), whose sum is σ = 17415034560. Its totient is φ = 14353936128.

The previous prime is 15847509137. The next prime is 15847509179. The reversal of 15847509157 is 75190574851.

15847509157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15847509157 - 2¹⁵ = 15847476389 is a prime.

It is a super-2 number, since 2×15847509157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15847509137) 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 15 ways as a sum of consecutive naturals, for example, 98998 + ... + 203704.

It is an arithmetic number, because the mean of its divisors is an integer number (1088439660).

Almost surely, 2^15847509157 is an apocalyptic number.

15847509157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

15847509157 is a deficient number, since it is larger than the sum of its proper divisors (1567525403).

15847509157 is a wasteful number, since it uses less digits than its factorization.

15847509157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105060.

The product of its (nonzero) digits is 1764000, while the sum is 52.

The spelling of 15847509157 in words is "fifteen billion, eight hundred forty-seven million, five hundred nine thousand, one hundred fifty-seven".