40172283582727 has 4 divisors (see below), whose sum is σ = 40172336768080. Its totient is φ = 40172230397376.

The previous prime is 40172283582709. The next prime is 40172283582737. The reversal of 40172283582727 is 72728538227104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40172283582727 is a prime.

It is a super-2 number, since 2×40172283582727² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40172283582737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25443123 + ... + 26975860.

It is an arithmetic number, because the mean of its divisors is an integer number (10043084192020).

Almost surely, 2^{40172283582727} is an apocalyptic number.

40172283582727 is a deficient number, since it is larger than the sum of its proper divisors (53185353).

40172283582727 is an equidigital number, since it uses as much as digits as its factorization.

40172283582727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53185352.

The product of its (nonzero) digits is 21073920, while the sum is 58.

The spelling of 40172283582727 in words is "forty trillion, one hundred seventy-two billion, two hundred eighty-three million, five hundred eighty-two thousand, seven hundred twenty-seven".