872578207427 has 2 divisors, whose sum is σ = 872578207428. Its totient is φ = 872578207426.

The previous prime is 872578207411. The next prime is 872578207453. The reversal of 872578207427 is 724702875278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872578207427 - 2⁴ = 872578207411 is a prime.

It is a super-2 number, since 2×872578207427² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (872578207927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436289103713 + 436289103714.

It is an arithmetic number, because the mean of its divisors is an integer number (436289103714).

Almost surely, 2^872578207427 is an apocalyptic number.

872578207427 is a deficient number, since it is larger than the sum of its proper divisors (1).

872578207427 is an equidigital number, since it uses as much as digits as its factorization.

872578207427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24586240, while the sum is 59.

The spelling of 872578207427 in words is "eight hundred seventy-two billion, five hundred seventy-eight million, two hundred seven thousand, four hundred twenty-seven".