20440375862 has 16 divisors (see below), whose sum is σ = 32052160512. Its totient is φ = 9757948200.

The previous prime is 20440375847. The next prime is 20440375871. The reversal of 20440375862 is 26857304402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381014 + ... + 431337.

It is an arithmetic number, because the mean of its divisors is an integer number (2003260032).

Almost surely, 2^20440375862 is an apocalyptic number.

20440375862 is a deficient number, since it is larger than the sum of its proper divisors (11611784650).

20440375862 is a wasteful number, since it uses less digits than its factorization.

20440375862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812923.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 20440375862 in words is "twenty billion, four hundred forty million, three hundred seventy-five thousand, eight hundred sixty-two".