40377424617155 has 4 divisors (see below), whose sum is σ = 48452909540592. Its totient is φ = 32301939693720.

The previous prime is 40377424617149. The next prime is 40377424617157. The reversal of 40377424617155 is 55171642477304.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40377424617155 - 2⁸ = 40377424616899 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 40377424617155.

It is not an unprimeable number, because it can be changed into a prime (40377424617157) 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, 4037742461711 + ... + 4037742461720.

It is an arithmetic number, because the mean of its divisors is an integer number (12113227385148).

Almost surely, 2^{40377424617155} is an apocalyptic number.

40377424617155 is a deficient number, since it is larger than the sum of its proper divisors (8075484923437).

40377424617155 is an equidigital number, since it uses as much as digits as its factorization.

40377424617155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075484923436.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 40377424617155 in words is "forty trillion, three hundred seventy-seven billion, four hundred twenty-four million, six hundred seventeen thousand, one hundred fifty-five".