20700429590889 has 24 divisors (see below), whose sum is σ = 30596249684000. Its totient is φ = 13479232358592.

The previous prime is 20700429590839. The next prime is 20700429590927. The reversal of 20700429590889 is 98809592400702.

It is a happy number.

It is not a de Polignac number, because 20700429590889 - 2²³ = 20700421202281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20700429590809) 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, 80891862 + ... + 81147360.

Almost surely, 2^{20700429590889} is an apocalyptic number.

It is an amenable number.

20700429590889 is a deficient number, since it is larger than the sum of its proper divisors (9895820093111).

20700429590889 is a wasteful number, since it uses less digits than its factorization.

20700429590889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464901 (or 464898 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 20700429590889 in words is "twenty trillion, seven hundred billion, four hundred twenty-nine million, five hundred ninety thousand, eight hundred eighty-nine".