763572572461 has 4 divisors (see below), whose sum is σ = 784209669052. Its totient is φ = 742935475872.

The previous prime is 763572572459. The next prime is 763572572471. The reversal of 763572572461 is 164275275367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164275275367 = 7 ⋅23467896481.

It can be written as a sum of positive squares in 2 ways, for example, as 707439116836 + 56133455625 = 841094^2 + 236925^2 .

It is a cyclic number.

It is not a de Polignac number, because 763572572461 - 2¹ = 763572572459 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 (763572572471) 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 3 ways as a sum of consecutive naturals, for example, 10318548240 + ... + 10318548313.

It is an arithmetic number, because the mean of its divisors is an integer number (196052417263).

Almost surely, 2^763572572461 is an apocalyptic number.

It is an amenable number.

763572572461 is a deficient number, since it is larger than the sum of its proper divisors (20637096591).

763572572461 is a wasteful number, since it uses less digits than its factorization.

763572572461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20637096590.

The product of its digits is 14817600, while the sum is 55.

The spelling of 763572572461 in words is "seven hundred sixty-three billion, five hundred seventy-two million, five hundred seventy-two thousand, four hundred sixty-one".