40507540000 has 60 divisors (see below), whose sum is σ = 99654673734. Its totient is φ = 16203008000.

The previous prime is 40507539979. The next prime is 40507540001. The reversal of 40507540000 is 4570504.

It can be written as a sum of positive squares in 5 ways, for example, as 1678049296 + 38829490704 = 40964^2 + 197052^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (40507540001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 992689 + ... + 1032688.

Almost surely, 2^40507540000 is an apocalyptic number.

40507540000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40507540000 is an abundant number, since it is smaller than the sum of its proper divisors (59147133734).

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

40507540000 is an equidigital number, since it uses as much as digits as its factorization.

40507540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025407 (or 2025384 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The spelling of 40507540000 in words is "forty billion, five hundred seven million, five hundred forty thousand".