40521318376 has 64 divisors (see below), whose sum is σ = 94836672000. Its totient is φ = 15768941760.

The previous prime is 40521318361. The next prime is 40521318427. The reversal of 40521318376 is 67381312504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490855 + ... + 567433.

It is an arithmetic number, because the mean of its divisors is an integer number (1481823000).

Almost surely, 2^40521318376 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 40521318376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47418336000).

40521318376 is an abundant number, since it is smaller than the sum of its proper divisors (54315353624).

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

40521318376 is a wasteful number, since it uses less digits than its factorization.

40521318376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77462 (or 77458 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 40521318376 in words is "forty billion, five hundred twenty-one million, three hundred eighteen thousand, three hundred seventy-six".