19692554994 has 48 divisors (see below), whose sum is σ = 48812429952. Its totient is φ = 5620685184.

The previous prime is 19692554983. The next prime is 19692555011. The reversal of 19692554994 is 49945529691.

19692554994 is a `hidden beast` number, since 1 + 9 + 6 + 92 + 55 + 499 + 4 = 666.

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, 44362 + ... + 203354.

It is an arithmetic number, because the mean of its divisors is an integer number (1016925624).

Almost surely, 2^19692554994 is an apocalyptic number.

19692554994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19692554994 is an abundant number, since it is smaller than the sum of its proper divisors (29119874958).

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

19692554994 is a wasteful number, since it uses less digits than its factorization.

19692554994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159991 (or 159988 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 63.

The spelling of 19692554994 in words is "nineteen billion, six hundred ninety-two million, five hundred fifty-four thousand, nine hundred ninety-four".