40521012504 has 96 divisors (see below), whose sum is σ = 118530270720. Its totient is φ = 11308102848.

The previous prime is 40521012491. The next prime is 40521012523.

40521012504 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245409 + ... + 375855.

It is an arithmetic number, because the mean of its divisors is an integer number (1234690320).

Almost surely, 2^40521012504 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 40521012504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59265135360).

40521012504 is an abundant number, since it is smaller than the sum of its proper divisors (78009258216).

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

40521012504 is a wasteful number, since it uses less digits than its factorization.

40521012504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130549 (or 130502 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

It can be divided in two parts, 405210 and 12504, that added together give a palindrome (417714).

The spelling of 40521012504 in words is "forty billion, five hundred twenty-one million, twelve thousand, five hundred four".