19149372054 has 32 divisors (see below), whose sum is σ = 42564131040. Its totient is φ = 6381628416.

The previous prime is 19149372029. The next prime is 19149372059. The reversal of 19149372054 is 45027394191.

19149372054 is a `hidden beast` number, since 1 + 91 + 493 + 7 + 20 + 54 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19149372059) 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, 204414 + ... + 282990.

It is an arithmetic number, because the mean of its divisors is an integer number (1330129095).

Almost surely, 2^19149372054 is an apocalyptic number.

19149372054 is an abundant number, since it is smaller than the sum of its proper divisors (23414758986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19149372054 is a wasteful number, since it uses less digits than its factorization.

19149372054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83101 (or 83095 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 19149372054 in words is "nineteen billion, one hundred forty-nine million, three hundred seventy-two thousand, fifty-four".