40325002564 has 108 divisors (see below), whose sum is σ = 94981439280. Its totient is φ = 14883976800.

The previous prime is 40325002513. The next prime is 40325002573. The reversal of 40325002564 is 46520052304.

It is a super-2 number, since 2×40325002564² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 405859 + ... + 495349.

Almost surely, 2^40325002564 is an apocalyptic number.

40325002564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40325002564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47490719640).

40325002564 is an abundant number, since it is smaller than the sum of its proper divisors (54656436716).

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

40325002564 is a wasteful number, since it uses less digits than its factorization.

40325002564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89550 (or 89530 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 40325002564 its reverse (46520052304), we get a palindrome (86845054868).

The spelling of 40325002564 in words is "forty billion, three hundred twenty-five million, two thousand, five hundred sixty-four".