40136875421172 has 36 divisors (see below), whose sum is σ = 96771217874688. Its totient is φ = 12947379164400.

The previous prime is 40136875421131. The next prime is 40136875421179. The reversal of 40136875421172 is 27112457863104.

It is a super-2 number, since 2×40136875421172² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136875421179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1740227604 + ... + 1740250667.

It is an arithmetic number, because the mean of its divisors is an integer number (2688089385408).

Almost surely, 2^{40136875421172} is an apocalyptic number.

It is an amenable number.

40136875421172 is an abundant number, since it is smaller than the sum of its proper divisors (56634342453516).

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

40136875421172 is a wasteful number, since it uses less digits than its factorization.

40136875421172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480478340 (or 3480478307 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 40136875421172 in words is "forty trillion, one hundred thirty-six billion, eight hundred seventy-five million, four hundred twenty-one thousand, one hundred seventy-two".