19157541158 has 16 divisors (see below), whose sum is σ = 32928161280. Its totient is φ = 8188709256.

The previous prime is 19157541157. The next prime is 19157541181. The reversal of 19157541158 is 85114575191.

It is a super-2 number, since 2×19157541158² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19157541157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799966 + ... + 1810577.

It is an arithmetic number, because the mean of its divisors is an integer number (2058010080).

Almost surely, 2^19157541158 is an apocalyptic number.

19157541158 is a deficient number, since it is larger than the sum of its proper divisors (13770620122).

19157541158 is a wasteful number, since it uses less digits than its factorization.

19157541158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610931.

The product of its digits is 252000, while the sum is 47.

The spelling of 19157541158 in words is "nineteen billion, one hundred fifty-seven million, five hundred forty-one thousand, one hundred fifty-eight".