20413402894 has 16 divisors (see below), whose sum is σ = 32256057600. Its totient is φ = 9662196024.

The previous prime is 20413402871. The next prime is 20413402897. The reversal of 20413402894 is 49820431402.

It is a super-4 number, since 4×20413402894⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413402897) 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, 151984 + ... + 252835.

It is an arithmetic number, because the mean of its divisors is an integer number (2016003600).

Almost surely, 2^20413402894 is an apocalyptic number.

20413402894 is a deficient number, since it is larger than the sum of its proper divisors (11842654706).

20413402894 is a wasteful number, since it uses less digits than its factorization.

20413402894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406167.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 20413402894 in words is "twenty billion, four hundred thirteen million, four hundred two thousand, eight hundred ninety-four".