40909132506 has 16 divisors (see below), whose sum is σ = 89256289248. Its totient is φ = 12396706800.

The previous prime is 40909132501. The next prime is 40909132507. The reversal of 40909132506 is 60523190904.

It is not an unprimeable number, because it can be changed into a prime (40909132501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309917605 + ... + 309917736.

It is an arithmetic number, because the mean of its divisors is an integer number (5578518078).

Almost surely, 2^40909132506 is an apocalyptic number.

40909132506 is an abundant number, since it is smaller than the sum of its proper divisors (48347156742).

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

40909132506 is a wasteful number, since it uses less digits than its factorization.

40909132506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619835357.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 40909132506 in words is "forty billion, nine hundred nine million, one hundred thirty-two thousand, five hundred six".