40188670402472 has 8 divisors (see below), whose sum is σ = 75353757004650. Its totient is φ = 20094335201232.

The previous prime is 40188670402469. The next prime is 40188670402477. The reversal of 40188670402472 is 27420407688104.

It is a happy number.

40188670402472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 40168900355236 + 19770047236 = 6337894^2 + 140606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40188670402477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2511791900147 + ... + 2511791900162.

Almost surely, 2^{40188670402472} is an apocalyptic number.

It is an amenable number.

40188670402472 is a deficient number, since it is larger than the sum of its proper divisors (35165086602178).

40188670402472 is a wasteful number, since it uses less digits than its factorization.

40188670402472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023583800315 (or 5023583800311 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 53.

The spelling of 40188670402472 in words is "forty trillion, one hundred eighty-eight billion, six hundred seventy million, four hundred two thousand, four hundred seventy-two".