19199285902 has 16 divisors (see below), whose sum is σ = 29512559232. Its totient is φ = 9364548600.

The previous prime is 19199285899. The next prime is 19199285933. The reversal of 19199285902 is 20958299191.

It is a super-2 number, since 2×19199285902² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681724 + ... + 709327.

It is an arithmetic number, because the mean of its divisors is an integer number (1844534952).

Almost surely, 2^19199285902 is an apocalyptic number.

19199285902 is a deficient number, since it is larger than the sum of its proper divisors (10313273330).

19199285902 is a wasteful number, since it uses less digits than its factorization.

19199285902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391223.

The product of its (nonzero) digits is 1049760, while the sum is 55.

The spelling of 19199285902 in words is "nineteen billion, one hundred ninety-nine million, two hundred eighty-five thousand, nine hundred two".