42256506763 has 4 divisors (see below), whose sum is σ = 42256930288. Its totient is φ = 42256083240.

The previous prime is 42256506701. The next prime is 42256506769. The reversal of 42256506763 is 36760565224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42256506763 - 2⁹ = 42256506251 is a prime.

It is a super-2 number, since 2×42256506763² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42256506769) 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, 29593 + ... + 292213.

It is an arithmetic number, because the mean of its divisors is an integer number (10564232572).

Almost surely, 2^42256506763 is an apocalyptic number.

42256506763 is a deficient number, since it is larger than the sum of its proper divisors (423525).

42256506763 is a wasteful number, since it uses less digits than its factorization.

42256506763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423524.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 42256506763 in words is "forty-two billion, two hundred fifty-six million, five hundred six thousand, seven hundred sixty-three".