20761422453 has 12 divisors (see below), whose sum is σ = 30013378668. Its totient is φ = 13829568000.

The previous prime is 20761422433. The next prime is 20761422457. The reversal of 20761422453 is 35422416702.

It can be written as a sum of positive squares in 2 ways, for example, as 11082404529 + 9679017924 = 105273^2 + 98382^2 .

It is not a de Polignac number, because 20761422453 - 2¹⁸ = 20761160309 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761422457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936798 + ... + 958703.

It is an arithmetic number, because the mean of its divisors is an integer number (2501114889).

Almost surely, 2^20761422453 is an apocalyptic number.

It is an amenable number.

20761422453 is a deficient number, since it is larger than the sum of its proper divisors (9251956215).

20761422453 is a wasteful number, since it uses less digits than its factorization.

20761422453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896724 (or 1896721 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 20761422453 in words is "twenty billion, seven hundred sixty-one million, four hundred twenty-two thousand, four hundred fifty-three".