20252390315730 has 32 divisors (see below), whose sum is σ = 48606068706624. Its totient is φ = 5400600534336.

The previous prime is 20252390315713. The next prime is 20252390315789. The reversal of 20252390315730 is 3751309325202.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2312409 + ... + 6771411.

It is an arithmetic number, because the mean of its divisors is an integer number (1518939647082).

Almost surely, 2^{20252390315730} is an apocalyptic number.

20252390315730 is an abundant number, since it is smaller than the sum of its proper divisors (28353678390894).

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

20252390315730 is a wasteful number, since it uses less digits than its factorization.

20252390315730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610410.

The product of its (nonzero) digits is 340200, while the sum is 42.

The spelling of 20252390315730 in words is "twenty trillion, two hundred fifty-two billion, three hundred ninety million, three hundred fifteen thousand, seven hundred thirty".