40185514481 has 16 divisors (see below), whose sum is σ = 49109328000. Its totient is φ = 32097580800.

The previous prime is 40185514471. The next prime is 40185514511. The reversal of 40185514481 is 18441558104.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40185514481 is a prime.

It is a super-2 number, since 2×40185514481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40185514471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1659731 + ... + 1683768.

It is an arithmetic number, because the mean of its divisors is an integer number (3069333000).

Almost surely, 2^40185514481 is an apocalyptic number.

It is an amenable number.

40185514481 is a deficient number, since it is larger than the sum of its proper divisors (8923813519).

40185514481 is a wasteful number, since it uses less digits than its factorization.

40185514481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343624.

The product of its (nonzero) digits is 102400, while the sum is 41.

The spelling of 40185514481 in words is "forty billion, one hundred eighty-five million, five hundred fourteen thousand, four hundred eighty-one".