40851085242 has 64 divisors (see below), whose sum is σ = 95358896640. Its totient is φ = 11535307200.

The previous prime is 40851085241. The next prime is 40851085267. The reversal of 40851085242 is 24258015804.

It is a happy number.

40851085242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40851085242² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40851085242.

It is not an unprimeable number, because it can be changed into a prime (40851085241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190528 + ... + 343515.

It is an arithmetic number, because the mean of its divisors is an integer number (1489982760).

Almost surely, 2^40851085242 is an apocalyptic number.

40851085242 is an abundant number, since it is smaller than the sum of its proper divisors (54507811398).

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

40851085242 is a wasteful number, since it uses less digits than its factorization.

40851085242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534139.

The product of its (nonzero) digits is 102400, while the sum is 39.

The spelling of 40851085242 in words is "forty billion, eight hundred fifty-one million, eighty-five thousand, two hundred forty-two".