20790359401 has 12 divisors (see below), whose sum is σ = 24187336452. Its totient is φ = 17818368288.

The previous prime is 20790359393. The next prime is 20790359413. The reversal of 20790359401 is 10495309702.

It can be written as a sum of positive squares in 2 ways, for example, as 6240210025 + 14550149376 = 78995^2 + 120624^2 .

It is not a de Polignac number, because 20790359401 - 2³ = 20790359393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20790359441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 603231 + ... + 636763.

It is an arithmetic number, because the mean of its divisors is an integer number (2015611371).

Almost surely, 2^20790359401 is an apocalyptic number.

It is an amenable number.

20790359401 is a deficient number, since it is larger than the sum of its proper divisors (3396977051).

20790359401 is a wasteful number, since it uses less digits than its factorization.

20790359401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46200 (or 46193 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 20790359401 in words is "twenty billion, seven hundred ninety million, three hundred fifty-nine thousand, four hundred one".