40448782506 has 32 divisors (see below), whose sum is σ = 90637080768. Its totient is φ = 11925930240.

The previous prime is 40448782489. The next prime is 40448782519. The reversal of 40448782506 is 60528784404.

It is a super-2 number, since 2×40448782506² (a number of 22 digits) contains 22 as substring.

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, 8279455 + ... + 8284338.

It is an arithmetic number, because the mean of its divisors is an integer number (2832408774).

Almost surely, 2^40448782506 is an apocalyptic number.

40448782506 is an abundant number, since it is smaller than the sum of its proper divisors (50188298262).

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

40448782506 is a wasteful number, since it uses less digits than its factorization.

40448782506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16563846.

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 40448782506 in words is "forty billion, four hundred forty-eight million, seven hundred eighty-two thousand, five hundred six".