20461370753 has 2 divisors, whose sum is σ = 20461370754. Its totient is φ = 20461370752.

The previous prime is 20461370659. The next prime is 20461370759. The reversal of 20461370753 is 35707316402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12577173904 + 7884196849 = 112148^2 + 88793^2 .

It is a cyclic number.

It is not a de Polignac number, because 20461370753 - 2¹⁰ = 20461369729 is a prime.

It is a super-3 number, since 3×20461370753³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20461370759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230685376 + 10230685377.

It is an arithmetic number, because the mean of its divisors is an integer number (10230685377).

Almost surely, 2^20461370753 is an apocalyptic number.

It is an amenable number.

20461370753 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461370753 is an equidigital number, since it uses as much as digits as its factorization.

20461370753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 20461370753 in words is "twenty billion, four hundred sixty-one million, three hundred seventy thousand, seven hundred fifty-three".