40194151851602 has 24 divisors (see below), whose sum is σ = 70144396626060. Its totient is φ = 17223681864480.

The previous prime is 40194151851593. The next prime is 40194151851653. The reversal of 40194151851602 is 20615815149104.

It can be written as a sum of positive squares in 2 ways, for example, as 40173653916361 + 20497935241 = 6338269^2 + 143171^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27659549 + ... + 29076432.

Almost surely, 2^{40194151851602} is an apocalyptic number.

40194151851602 is a deficient number, since it is larger than the sum of its proper divisors (29950244774458).

40194151851602 is a wasteful number, since it uses less digits than its factorization.

40194151851602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56743226 (or 56743219 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 40194151851602 in words is "forty trillion, one hundred ninety-four billion, one hundred fifty-one million, eight hundred fifty-one thousand, six hundred two".