40635613542 has 16 divisors (see below), whose sum is σ = 81328924080. Its totient is φ = 13535588352.

The previous prime is 40635613541. The next prime is 40635613573. The reversal of 40635613542 is 24531653604.

It is a self number, because there is not a number n which added to its sum of digits gives 40635613542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40635613541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394883 + ... + 2411790.

It is an arithmetic number, because the mean of its divisors is an integer number (5083057755).

Almost surely, 2^40635613542 is an apocalyptic number.

40635613542 is an abundant number, since it is smaller than the sum of its proper divisors (40693310538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40635613542 is a wasteful number, since it uses less digits than its factorization.

40635613542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808087.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 40635613542 in words is "forty billion, six hundred thirty-five million, six hundred thirteen thousand, five hundred forty-two".