40054171545 has 40 divisors (see below), whose sum is σ = 71840545920. Its totient is φ = 21350403360.

The previous prime is 40054171511. The next prime is 40054171561. The reversal of 40054171545 is 54517145004.

40054171545 is a `hidden beast` number, since 4 + 0 + 0 + 5 + 41 + 71 + 545 = 666.

40054171545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40054171545 - 2⁶ = 40054171481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 731326 + ... + 784184.

It is an arithmetic number, because the mean of its divisors is an integer number (1796013648).

Almost surely, 2^40054171545 is an apocalyptic number.

40054171545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40054171545 is a deficient number, since it is larger than the sum of its proper divisors (31786374375).

40054171545 is a wasteful number, since it uses less digits than its factorization.

40054171545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54747 (or 54738 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The spelling of 40054171545 in words is "forty billion, fifty-four million, one hundred seventy-one thousand, five hundred forty-five".