216407262259 has 2 divisors, whose sum is σ = 216407262260. Its totient is φ = 216407262258.

The previous prime is 216407262221. The next prime is 216407262277. The reversal of 216407262259 is 952262704612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216407262259 - 2²³ = 216398873651 is a prime.

It is not a weakly prime, because it can be changed into another prime (216407262209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108203631129 + 108203631130.

It is an arithmetic number, because the mean of its divisors is an integer number (108203631130).

Almost surely, 2^216407262259 is an apocalyptic number.

216407262259 is a deficient number, since it is larger than the sum of its proper divisors (1).

216407262259 is an equidigital number, since it uses as much as digits as its factorization.

216407262259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 216407262259 in words is "two hundred sixteen billion, four hundred seven million, two hundred sixty-two thousand, two hundred fifty-nine".