215747060447 has 2 divisors, whose sum is σ = 215747060448. Its totient is φ = 215747060446.

The previous prime is 215747060423. The next prime is 215747060453. The reversal of 215747060447 is 744060747512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215747060447 - 2¹⁴ = 215747044063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215747060407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107873530223 + 107873530224.

It is an arithmetic number, because the mean of its divisors is an integer number (107873530224).

Almost surely, 2^215747060447 is an apocalyptic number.

215747060447 is a deficient number, since it is larger than the sum of its proper divisors (1).

215747060447 is an equidigital number, since it uses as much as digits as its factorization.

215747060447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 215747060447 in words is "two hundred fifteen billion, seven hundred forty-seven million, sixty thousand, four hundred forty-seven".