427157907287 has 2 divisors, whose sum is σ = 427157907288. Its totient is φ = 427157907286.

The previous prime is 427157907271. The next prime is 427157907301. The reversal of 427157907287 is 782709751724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427157907287 - 2⁴ = 427157907271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427157937287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213578953643 + 213578953644.

It is an arithmetic number, because the mean of its divisors is an integer number (213578953644).

Almost surely, 2^427157907287 is an apocalyptic number.

427157907287 is a deficient number, since it is larger than the sum of its proper divisors (1).

427157907287 is an equidigital number, since it uses as much as digits as its factorization.

427157907287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13829760, while the sum is 59.

The spelling of 427157907287 in words is "four hundred twenty-seven billion, one hundred fifty-seven million, nine hundred seven thousand, two hundred eighty-seven".