40012520000 has 70 divisors (see below), whose sum is σ = 99218144718. Its totient is φ = 16004992000.

The previous prime is 40012519993. The next prime is 40012520021. The reversal of 40012520000 is 2521004.

It can be written as a sum of positive squares in 5 ways, for example, as 15273005056 + 24739514944 = 123584^2 + 157288^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 460157 + ... + 540156.

Almost surely, 2^40012520000 is an apocalyptic number.

40012520000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40012520000 is an abundant number, since it is smaller than the sum of its proper divisors (59205624718).

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

40012520000 is an equidigital number, since it uses as much as digits as its factorization.

40012520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000345 (or 1000320 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The spelling of 40012520000 in words is "forty billion, twelve million, five hundred twenty thousand".