40537454044 has 6 divisors (see below), whose sum is σ = 70940544584. Its totient is φ = 20268727020.

The previous prime is 40537454039. The next prime is 40537454071. The reversal of 40537454044 is 44045473504.

It is a happy number.

40537454044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40537453988 and 40537454006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5067181752 + ... + 5067181759.

Almost surely, 2^40537454044 is an apocalyptic number.

It is an amenable number.

40537454044 is a deficient number, since it is larger than the sum of its proper divisors (30403090540).

40537454044 is a wasteful number, since it uses less digits than its factorization.

40537454044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134363515 (or 10134363513 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 40.

The spelling of 40537454044 in words is "forty billion, five hundred thirty-seven million, four hundred fifty-four thousand, forty-four".