19324799902 has 16 divisors (see below), whose sum is σ = 30008535552. Its totient is φ = 9323751960.

The previous prime is 19324799899. The next prime is 19324799941. The reversal of 19324799902 is 20999742391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427608 + ... + 470635.

It is an arithmetic number, because the mean of its divisors is an integer number (1875533472).

Almost surely, 2^19324799902 is an apocalyptic number.

19324799902 is a deficient number, since it is larger than the sum of its proper divisors (10683735650).

19324799902 is a wasteful number, since it uses less digits than its factorization.

19324799902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898623.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The spelling of 19324799902 in words is "nineteen billion, three hundred twenty-four million, seven hundred ninety-nine thousand, nine hundred two".