40331504521 has 12 divisors (see below), whose sum is σ = 51181353360. Its totient is φ = 31427145960.

The previous prime is 40331504519. The next prime is 40331504539. The reversal of 40331504521 is 12540513304.

It is not a de Polignac number, because 40331504521 - 2¹ = 40331504519 is a prime.

It is a super-3 number, since 3×40331504521³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40331504521.

It is not an unprimeable number, because it can be changed into a prime (40331504221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37412731 + ... + 37413808.

It is an arithmetic number, because the mean of its divisors is an integer number (4265112780).

Almost surely, 2^40331504521 is an apocalyptic number.

It is an amenable number.

40331504521 is a deficient number, since it is larger than the sum of its proper divisors (10849848839).

40331504521 is a wasteful number, since it uses less digits than its factorization.

40331504521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74826564 (or 74826557 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 40331504521 in words is "forty billion, three hundred thirty-one million, five hundred four thousand, five hundred twenty-one".