40181545745 has 16 divisors (see below), whose sum is σ = 54298114560. Its totient is φ = 28280265600.

The previous prime is 40181545727. The next prime is 40181545753. The reversal of 40181545745 is 54754518104.

It is not a de Polignac number, because 40181545745 - 2⁶ = 40181545681 is a prime.

It is a super-2 number, since 2×40181545745² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40181545696 and 40181545705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11781740 + ... + 11785149.

It is an arithmetic number, because the mean of its divisors is an integer number (3393632160).

Almost surely, 2^40181545745 is an apocalyptic number.

It is an amenable number.

40181545745 is a deficient number, since it is larger than the sum of its proper divisors (14116568815).

40181545745 is a wasteful number, since it uses less digits than its factorization.

40181545745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23566936.

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 40181545745 in words is "forty billion, one hundred eighty-one million, five hundred forty-five thousand, seven hundred forty-five".