40290276645 has 12 divisors (see below), whose sum is σ = 69836479596. Its totient is φ = 21488147520.

The previous prime is 40290276619. The next prime is 40290276713. The reversal of 40290276645 is 54667209204.

40290276645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9381472164 + 30908804481 = 96858^2 + 175809^2 .

It is not a de Polignac number, because 40290276645 - 2⁵ = 40290276613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 895339481 = 40290276645 / (4 + 0 + 2 + 9 + 0 + 2 + 7 + 6 + 6 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 40290276645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447669696 + ... + 447669785.

It is an arithmetic number, because the mean of its divisors is an integer number (5819706633).

Almost surely, 2^40290276645 is an apocalyptic number.

40290276645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40290276645 is a deficient number, since it is larger than the sum of its proper divisors (29546202951).

40290276645 is a wasteful number, since it uses less digits than its factorization.

40290276645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895339492 (or 895339489 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 40290276645 in words is "forty billion, two hundred ninety million, two hundred seventy-six thousand, six hundred forty-five".