764156226253 has 4 divisors (see below), whose sum is σ = 873321401440. Its totient is φ = 654991051068.

The previous prime is 764156226241. The next prime is 764156226259. The reversal of 764156226253 is 352622651467.

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: 352622651467 = 23 ⋅15331419629.

It is a cyclic number.

It is not a de Polignac number, because 764156226253 - 2²⁹ = 763619355341 is a prime.

It is a super-2 number, since 2×764156226253² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 764156226197 and 764156226206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764156226259) 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, 54582587583 + ... + 54582587596.

It is an arithmetic number, because the mean of its divisors is an integer number (218330350360).

Almost surely, 2^764156226253 is an apocalyptic number.

It is an amenable number.

764156226253 is a deficient number, since it is larger than the sum of its proper divisors (109165175187).

764156226253 is a wasteful number, since it uses less digits than its factorization.

764156226253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109165175186.

The product of its digits is 3628800, while the sum is 49.

The spelling of 764156226253 in words is "seven hundred sixty-four billion, one hundred fifty-six million, two hundred twenty-six thousand, two hundred fifty-three".