416691879427 has 2 divisors, whose sum is σ = 416691879428. Its totient is φ = 416691879426.

The previous prime is 416691879403. The next prime is 416691879463. The reversal of 416691879427 is 724978196614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 416691879427 - 2²⁷ = 416557661699 is a prime.

It is not a weakly prime, because it can be changed into another prime (416631879427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208345939713 + 208345939714.

It is an arithmetic number, because the mean of its divisors is an integer number (208345939714).

Almost surely, 2^416691879427 is an apocalyptic number.

416691879427 is a deficient number, since it is larger than the sum of its proper divisors (1).

416691879427 is an equidigital number, since it uses as much as digits as its factorization.

416691879427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 64.

The spelling of 416691879427 in words is "four hundred sixteen billion, six hundred ninety-one million, eight hundred seventy-nine thousand, four hundred twenty-seven".