40510354194 has 24 divisors (see below), whose sum is σ = 87967935900. Its totient is φ = 13473374208.

The previous prime is 40510354177. The next prime is 40510354217. The reversal of 40510354194 is 49145301504.

It is a happy number.

40510354194 is a `hidden beast` number, since 4 + 0 + 5 + 103 + 541 + 9 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36839811969 + 3670542225 = 191937^2 + 60585^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2498127 + ... + 2514290.

Almost surely, 2^40510354194 is an apocalyptic number.

40510354194 is an abundant number, since it is smaller than the sum of its proper divisors (47457581706).

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

40510354194 is a wasteful number, since it uses less digits than its factorization.

40510354194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012874 (or 5012871 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 40510354194 its reverse (49145301504), we get a palindrome (89655655698).

The spelling of 40510354194 in words is "forty billion, five hundred ten million, three hundred fifty-four thousand, one hundred ninety-four".