19136497000 has 32 divisors (see below), whose sum is σ = 44779405320. Its totient is φ = 7654598400.

The previous prime is 19136496979. The next prime is 19136497019. The reversal of 19136497000 is 79463191.

It can be written as a sum of positive squares in 4 ways, for example, as 770284516 + 18366212484 = 27754^2 + 135522^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9567249 + ... + 9569248.

Almost surely, 2^19136497000 is an apocalyptic number.

19136497000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19136497000 is an abundant number, since it is smaller than the sum of its proper divisors (25642908320).

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

19136497000 is a wasteful number, since it uses less digits than its factorization.

19136497000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136518 (or 19136504 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 19136497000 in words is "nineteen billion, one hundred thirty-six million, four hundred ninety-seven thousand".