19602609920 has 36 divisors (see below), whose sum is σ = 46954379640. Its totient is φ = 7841043456.

The previous prime is 19602609899. The next prime is 19602609931. The reversal of 19602609920 is 2990620691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7655990 + ... + 7658549.

Almost surely, 2^19602609920 is an apocalyptic number.

19602609920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19602609920 is an abundant number, since it is smaller than the sum of its proper divisors (27351769720).

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

19602609920 is an equidigital number, since it uses as much as digits as its factorization.

19602609920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15314560 (or 15314546 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 19602609920 in words is "nineteen billion, six hundred two million, six hundred nine thousand, nine hundred twenty".