20374623361 has 2 divisors, whose sum is σ = 20374623362. Its totient is φ = 20374623360.

The previous prime is 20374623349. The next prime is 20374623449. The reversal of 20374623361 is 16332647302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19889742961 + 484880400 = 141031^2 + 22020^2 .

It is a cyclic number.

It is not a de Polignac number, because 20374623361 - 2⁵ = 20374623329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20374623361.

It is not a weakly prime, because it can be changed into another prime (20374623161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187311680 + 10187311681.

It is an arithmetic number, because the mean of its divisors is an integer number (10187311681).

Almost surely, 2^20374623361 is an apocalyptic number.

It is an amenable number.

20374623361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20374623361 is an equidigital number, since it uses as much as digits as its factorization.

20374623361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 20374623361 in words is "twenty billion, three hundred seventy-four million, six hundred twenty-three thousand, three hundred sixty-one".