40779656269 has 4 divisors (see below), whose sum is σ = 44486897760. Its totient is φ = 37072414780.

The previous prime is 40779656263. The next prime is 40779656297. The reversal of 40779656269 is 96265697704.

40779656269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 40779656269 - 2³ = 40779656261 is a prime.

It is a super-2 number, since 2×40779656269² (a number of 22 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 (40779656261) 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, 1853620729 + ... + 1853620750.

It is an arithmetic number, because the mean of its divisors is an integer number (11121724440).

Almost surely, 2^40779656269 is an apocalyptic number.

It is an amenable number.

40779656269 is a deficient number, since it is larger than the sum of its proper divisors (3707241491).

40779656269 is a wasteful number, since it uses less digits than its factorization.

40779656269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707241490.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 40779656269 in words is "forty billion, seven hundred seventy-nine million, six hundred fifty-six thousand, two hundred sixty-nine".