40402620545 has 8 divisors (see below), whose sum is σ = 55409308224. Its totient is φ = 27704654064.

The previous prime is 40402620539. The next prime is 40402620551. The reversal of 40402620545 is 54502620404.

It is an interprime number because it is at equal distance from previous prime (40402620539) and next prime (40402620551).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40402620545 - 2⁸ = 40402620289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577180259 + ... + 577180328.

It is an arithmetic number, because the mean of its divisors is an integer number (6926163528).

Almost surely, 2^40402620545 is an apocalyptic number.

It is an amenable number.

40402620545 is a deficient number, since it is larger than the sum of its proper divisors (15006687679).

40402620545 is a wasteful number, since it uses less digits than its factorization.

40402620545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154360599.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 40402620545 in words is "forty billion, four hundred two million, six hundred twenty thousand, five hundred forty-five".