40842816387 has 16 divisors (see below), whose sum is σ = 58605704352. Its totient is φ = 25206750720.

The previous prime is 40842816383. The next prime is 40842816397. The reversal of 40842816387 is 78361824804.

40842816387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40842816387 - 2² = 40842816383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (40842816383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6561148 + ... + 6567369.

It is an arithmetic number, because the mean of its divisors is an integer number (3662856522).

Almost surely, 2^40842816387 is an apocalyptic number.

40842816387 is a deficient number, since it is larger than the sum of its proper divisors (17762887965).

40842816387 is a wasteful number, since it uses less digits than its factorization.

40842816387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13128598.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 40842816387 in words is "forty billion, eight hundred forty-two million, eight hundred sixteen thousand, three hundred eighty-seven".