766944118253 has 4 divisors (see below), whose sum is σ = 766947752220. Its totient is φ = 766940484288.

The previous prime is 766944118247. The next prime is 766944118277. The reversal of 766944118253 is 352811449667.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 641541727369 + 125402390884 = 800963^2 + 354122^2 .

It is a cyclic number.

It is not a de Polignac number, because 766944118253 - 2⁸ = 766944117997 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 (766944118243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479518 + ... + 1929471.

It is an arithmetic number, because the mean of its divisors is an integer number (191736938055).

Almost surely, 2^766944118253 is an apocalyptic number.

It is an amenable number.

766944118253 is a deficient number, since it is larger than the sum of its proper divisors (3633967).

766944118253 is a wasteful number, since it uses less digits than its factorization.

766944118253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633966.

The product of its digits is 8709120, while the sum is 56.

The spelling of 766944118253 in words is "seven hundred sixty-six billion, nine hundred forty-four million, one hundred eighteen thousand, two hundred fifty-three".