40031545513545 has 32 divisors (see below), whose sum is σ = 71170507440000. Its totient is φ = 21349162982592.

The previous prime is 40031545513541. The next prime is 40031545513549. The reversal of 40031545513545 is 54531554513004.

It is a happy number.

40031545513545 is a `hidden beast` number, since 4 + 0 + 0 + 3 + 1 + 54 + 5 + 51 + 3 + 545 = 666.

It is an interprime number because it is at equal distance from previous prime (40031545513541) and next prime (40031545513549).

It is not a de Polignac number, because 40031545513545 - 2² = 40031545513541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40031545513545.

It is not an unprimeable number, because it can be changed into a prime (40031545513541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3994002 + ... + 9798731.

It is an arithmetic number, because the mean of its divisors is an integer number (2224078357500).

Almost surely, 2^{40031545513545} is an apocalyptic number.

40031545513545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40031545513545 is a deficient number, since it is larger than the sum of its proper divisors (31138961926455).

40031545513545 is a wasteful number, since it uses less digits than its factorization.

40031545513545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814246 (or 13814240 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 40031545513545 in words is "forty trillion, thirty-one billion, five hundred forty-five million, five hundred thirteen thousand, five hundred forty-five".