40531144532 has 12 divisors (see below), whose sum is σ = 70978803840. Its totient is φ = 20251486296.

The previous prime is 40531144523. The next prime is 40531144579. The reversal of 40531144532 is 23544113504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3515018 + ... + 3526529.

It is an arithmetic number, because the mean of its divisors is an integer number (5914900320).

Almost surely, 2^40531144532 is an apocalyptic number.

It is an amenable number.

40531144532 is a deficient number, since it is larger than the sum of its proper divisors (30447659308).

40531144532 is a wasteful number, since it uses less digits than its factorization.

40531144532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7042990 (or 7042988 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 40531144532 in words is "forty billion, five hundred thirty-one million, one hundred forty-four thousand, five hundred thirty-two".