17972225020 has 24 divisors (see below), whose sum is σ = 39728077200. Its totient is φ = 6810527232.

The previous prime is 17972225009. The next prime is 17972225021. The reversal of 17972225020 is 2052227971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17972225021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23647285 + ... + 23648044.

It is an arithmetic number, because the mean of its divisors is an integer number (1655336550).

Almost surely, 2^17972225020 is an apocalyptic number.

17972225020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17972225020 is an abundant number, since it is smaller than the sum of its proper divisors (21755852180).

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

17972225020 is a wasteful number, since it uses less digits than its factorization.

17972225020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47295357 (or 47295355 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 17972225020 in words is "seventeen billion, nine hundred seventy-two million, two hundred twenty-five thousand, twenty".