19621084708 has 12 divisors (see below), whose sum is σ = 34337878960. Its totient is φ = 9810262152.

The previous prime is 19621084669. The next prime is 19621084709. The reversal of 19621084708 is 80748012691.

It is a super-2 number, since 2×19621084708² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19621084709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239023 + ... + 310441.

Almost surely, 2^19621084708 is an apocalyptic number.

It is an amenable number.

19621084708 is a deficient number, since it is larger than the sum of its proper divisors (14716794252).

19621084708 is a wasteful number, since it uses less digits than its factorization.

19621084708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140106 (or 140104 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 19621084708 in words is "nineteen billion, six hundred twenty-one million, eighty-four thousand, seven hundred eight".