20593751004 has 18 divisors (see below), whose sum is σ = 52056426240. Its totient is φ = 6864583656.

The previous prime is 20593750997. The next prime is 20593751033. The reversal of 20593751004 is 40015739502.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 572048639 = 20593751004 / (2 + 0 + 5 + 9 + 3 + 7 + 5 + 1 + 0 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 20593751004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286024284 + ... + 286024355.

It is an arithmetic number, because the mean of its divisors is an integer number (2892023680).

Almost surely, 2^20593751004 is an apocalyptic number.

It is an amenable number.

20593751004 is an abundant number, since it is smaller than the sum of its proper divisors (31462675236).

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

20593751004 is a wasteful number, since it uses less digits than its factorization.

20593751004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572048649 (or 572048644 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 20593751004 in words is "twenty billion, five hundred ninety-three million, seven hundred fifty-one thousand, four".