19619861058 has 48 divisors (see below), whose sum is σ = 51440313600. Its totient is φ = 5275928448.

The previous prime is 19619861039. The next prime is 19619861059. The reversal of 19619861058 is 85016891691.

19619861058 is a `hidden beast` number, since 1 + 9 + 6 + 19 + 8 + 610 + 5 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 19619860995 and 19619861013.

It is not an unprimeable number, because it can be changed into a prime (19619861059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4577658 + ... + 4581941.

It is an arithmetic number, because the mean of its divisors is an integer number (1071673200).

Almost surely, 2^19619861058 is an apocalyptic number.

19619861058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19619861058 is an abundant number, since it is smaller than the sum of its proper divisors (31820452542).

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

19619861058 is a wasteful number, since it uses less digits than its factorization.

19619861058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9159631 (or 9159628 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 19619861058 in words is "nineteen billion, six hundred nineteen million, eight hundred sixty-one thousand, fifty-eight".