615422205241691 has 2 divisors, whose sum is σ = 615422205241692. Its totient is φ = 615422205241690.

The previous prime is 615422205241687. The next prime is 615422205241693. The reversal of 615422205241691 is 196142502224516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 615422205241691 - 2² = 615422205241687 is a prime.

Together with 615422205241693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (615422205241693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307711102620845 + 307711102620846.

It is an arithmetic number, because the mean of its divisors is an integer number (307711102620846).

Almost surely, 2^{615422205241691} is an apocalyptic number.

615422205241691 is a deficient number, since it is larger than the sum of its proper divisors (1).

615422205241691 is an equidigital number, since it uses as much as digits as its factorization.

615422205241691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 615422205241691 in words is "six hundred fifteen trillion, four hundred twenty-two billion, two hundred five million, two hundred forty-one thousand, six hundred ninety-one".