20007295901789 has 6 divisors (see below), whose sum is σ = 23273793191934. Its totient is φ = 17149110772920.

The previous prime is 20007295901767. The next prime is 20007295901837. The reversal of 20007295901789 is 98710959270002.

It can be written as a sum of positive squares in only one way, i.e., 19473421636900 + 533874264889 = 4412870^2 + 730667^2 .

It is not a de Polignac number, because 20007295901789 - 2²⁰ = 20007294853213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20007295801789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204156080582 + ... + 204156080679.

It is an arithmetic number, because the mean of its divisors is an integer number (3878965531989).

Almost surely, 2^{20007295901789} is an apocalyptic number.

It is an amenable number.

20007295901789 is a deficient number, since it is larger than the sum of its proper divisors (3266497290145).

20007295901789 is an equidigital number, since it uses as much as digits as its factorization.

20007295901789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408312161275 (or 408312161268 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 59.

The spelling of 20007295901789 in words is "twenty trillion, seven billion, two hundred ninety-five million, nine hundred one thousand, seven hundred eighty-nine".