20404563140862 has 48 divisors (see below), whose sum is σ = 44781029592000. Its totient is φ = 6713697249792.

The previous prime is 20404563140839. The next prime is 20404563140869. The reversal of 20404563140862 is 26804136540402.

20404563140862 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 4 + 5 + 631 + 4 + 0 + 8 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404563140869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3685314 + ... + 7375002.

It is an arithmetic number, because the mean of its divisors is an integer number (932938116500).

Almost surely, 2^{20404563140862} is an apocalyptic number.

20404563140862 is an abundant number, since it is smaller than the sum of its proper divisors (24376466451138).

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

20404563140862 is a wasteful number, since it uses less digits than its factorization.

20404563140862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693665 (or 3693662 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 20404563140862 in words is "twenty trillion, four hundred four billion, five hundred sixty-three million, one hundred forty thousand, eight hundred sixty-two".