764950690253 has 4 divisors (see below), whose sum is σ = 767081472480. Its totient is φ = 762819908028.

The previous prime is 764950690241. The next prime is 764950690271. The reversal of 764950690253 is 352096059467.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352096059467 = 571 ⋅616630577.

It is a cyclic number.

It is not a de Polignac number, because 764950690253 - 2¹⁶ = 764950624717 is a prime.

It is a super-2 number, since 2×764950690253² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764950690213) 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, 1065390575 + ... + 1065391292.

It is an arithmetic number, because the mean of its divisors is an integer number (191770368120).

Almost surely, 2^764950690253 is an apocalyptic number.

It is an amenable number.

764950690253 is a deficient number, since it is larger than the sum of its proper divisors (2130782227).

764950690253 is a wasteful number, since it uses less digits than its factorization.

764950690253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130782226.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 764950690253 in words is "seven hundred sixty-four billion, nine hundred fifty million, six hundred ninety thousand, two hundred fifty-three".