40277564885 has 4 divisors (see below), whose sum is σ = 48333077868. Its totient is φ = 32222051904.

The previous prime is 40277564881. The next prime is 40277564893. The reversal of 40277564885 is 58846577204.

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 26376683281 + 13900881604 = 162409^2 + 117902^2 .

It is a cyclic number.

It is not a de Polignac number, because 40277564885 - 2² = 40277564881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40277564885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40277564881) 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, 4027756484 + ... + 4027756493.

It is an arithmetic number, because the mean of its divisors is an integer number (12083269467).

Almost surely, 2^40277564885 is an apocalyptic number.

It is an amenable number.

40277564885 is a deficient number, since it is larger than the sum of its proper divisors (8055512983).

40277564885 is an equidigital number, since it uses as much as digits as its factorization.

40277564885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055512982.

The product of its (nonzero) digits is 15052800, while the sum is 56.

The spelling of 40277564885 in words is "forty billion, two hundred seventy-seven million, five hundred sixty-four thousand, eight hundred eighty-five".