19465294518 has 40 divisors (see below), whose sum is σ = 43668121728. Its totient is φ = 6480778896.

The previous prime is 19465294493. The next prime is 19465294547. The reversal of 19465294518 is 81549256491.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67755 + ... + 208617.

Almost surely, 2^19465294518 is an apocalyptic number.

19465294518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19465294518 is an abundant number, since it is smaller than the sum of its proper divisors (24202827210).

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

19465294518 is a wasteful number, since it uses less digits than its factorization.

19465294518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141730 (or 141721 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 19465294518 in words is "nineteen billion, four hundred sixty-five million, two hundred ninety-four thousand, five hundred eighteen".