40534452864 has 256 divisors, whose sum is σ = 127500816000. Its totient is φ = 12798673920.

The previous prime is 40534452863. The next prime is 40534452887. The reversal of 40534452864 is 46825443504.

40534452864 is a `hidden beast` number, since 4 + 0 + 534 + 4 + 52 + 8 + 64 = 666.

It is not an unprimeable number, because it can be changed into a prime (40534452863) 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, 5314974 + ... + 5322594.

Almost surely, 2^40534452864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40534452864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63750408000).

40534452864 is an abundant number, since it is smaller than the sum of its proper divisors (86966363136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40534452864 is an frugal number, since it uses more digits than its factorization.

40534452864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675 (or 7645 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 40534452864 in words is "forty billion, five hundred thirty-four million, four hundred fifty-two thousand, eight hundred sixty-four".