40179439627 has 2 divisors, whose sum is σ = 40179439628. Its totient is φ = 40179439626.

The previous prime is 40179439621. The next prime is 40179439661. The reversal of 40179439627 is 72693497104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40179439627 is a prime.

It is a super-2 number, since 2×40179439627² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40179439621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20089719813 + 20089719814.

It is an arithmetic number, because the mean of its divisors is an integer number (20089719814).

Almost surely, 2^40179439627 is an apocalyptic number.

40179439627 is a deficient number, since it is larger than the sum of its proper divisors (1).

40179439627 is an equidigital number, since it uses as much as digits as its factorization.

40179439627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 40179439627 in words is "forty billion, one hundred seventy-nine million, four hundred thirty-nine thousand, six hundred twenty-seven".