20023194370872 has 128 divisors (see below), whose sum is σ = 62431971402240. Its totient is φ = 5198995130880.

The previous prime is 20023194370841. The next prime is 20023194370967. The reversal of 20023194370872 is 27807349132002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3333178 + ... + 7152374.

It is an arithmetic number, because the mean of its divisors is an integer number (487749776580).

Almost surely, 2^{20023194370872} is an apocalyptic number.

20023194370872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023194370872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31215985701120).

20023194370872 is an abundant number, since it is smaller than the sum of its proper divisors (42408777031368).

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

20023194370872 is a wasteful number, since it uses less digits than its factorization.

20023194370872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822061 (or 3822057 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 20023194370872 in words is "twenty trillion, twenty-three billion, one hundred ninety-four million, three hundred seventy thousand, eight hundred seventy-two".