19948435794 has 48 divisors (see below), whose sum is σ = 49479610752. Its totient is φ = 5689920384.

The previous prime is 19948435789. The next prime is 19948435807. The reversal of 19948435794 is 49753484991.

19948435794 is a `hidden beast` number, since 1 + 99 + 48 + 435 + 79 + 4 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58774 + ... + 208209.

It is an arithmetic number, because the mean of its divisors is an integer number (1030825224).

Almost surely, 2^19948435794 is an apocalyptic number.

19948435794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19948435794 is an abundant number, since it is smaller than the sum of its proper divisors (29531174958).

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

19948435794 is a wasteful number, since it uses less digits than its factorization.

19948435794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267591 (or 267588 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 19948435794 in words is "nineteen billion, nine hundred forty-eight million, four hundred thirty-five thousand, seven hundred ninety-four".