40637081445 has 48 divisors (see below), whose sum is σ = 67366391040. Its totient is φ = 20917173120.

The previous prime is 40637081431. The next prime is 40637081447. The reversal of 40637081445 is 54418073604.

40637081445 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 40637081445 - 2⁸ = 40637081189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40637081397 and 40637081406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40637081447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5603812 + ... + 5611058.

It is an arithmetic number, because the mean of its divisors is an integer number (1403466480).

Almost surely, 2^40637081445 is an apocalyptic number.

It is an amenable number.

40637081445 is a deficient number, since it is larger than the sum of its proper divisors (26729309595).

40637081445 is a wasteful number, since it uses less digits than its factorization.

40637081445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706 (or 7675 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 40637081445 in words is "forty billion, six hundred thirty-seven million, eighty-one thousand, four hundred forty-five".