19938323164350 has 48 divisors (see below), whose sum is σ = 49447959971760. Its totient is φ = 5316787411200.

The previous prime is 19938323164231. The next prime is 19938323164363. The reversal of 19938323164350 is 5346132383991.

It is a super-2 number, since 2×19938323164350² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7052106 + ... + 9466194.

It is an arithmetic number, because the mean of its divisors is an integer number (1030165832745).

Almost surely, 2^{19938323164350} is an apocalyptic number.

19938323164350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19938323164350 is an abundant number, since it is smaller than the sum of its proper divisors (29509636807410).

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

19938323164350 is a wasteful number, since it uses less digits than its factorization.

19938323164350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469165 (or 2469160 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 57.

The spelling of 19938323164350 in words is "nineteen trillion, nine hundred thirty-eight billion, three hundred twenty-three million, one hundred sixty-four thousand, three hundred fifty".