215134324579 has 2 divisors, whose sum is σ = 215134324580. Its totient is φ = 215134324578.

The previous prime is 215134324543. The next prime is 215134324619. The reversal of 215134324579 is 975423431512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215134324579 - 2²³ = 215125935971 is a prime.

It is a super-2 number, since 2×215134324579² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215134324519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107567162289 + 107567162290.

It is an arithmetic number, because the mean of its divisors is an integer number (107567162290).

Almost surely, 2^215134324579 is an apocalyptic number.

215134324579 is a deficient number, since it is larger than the sum of its proper divisors (1).

215134324579 is an equidigital number, since it uses as much as digits as its factorization.

215134324579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 46.

The spelling of 215134324579 in words is "two hundred fifteen billion, one hundred thirty-four million, three hundred twenty-four thousand, five hundred seventy-nine".