126389399287 has 2 divisors, whose sum is σ = 126389399288. Its totient is φ = 126389399286.

The previous prime is 126389399249. The next prime is 126389399317. The reversal of 126389399287 is 782993983621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126389399287 - 2¹⁹ = 126388874999 is a prime.

It is a super-2 number, since 2×126389399287² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126389339287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63194699643 + 63194699644.

It is an arithmetic number, because the mean of its divisors is an integer number (63194699644).

Almost surely, 2^126389399287 is an apocalyptic number.

126389399287 is a deficient number, since it is larger than the sum of its proper divisors (1).

126389399287 is an equidigital number, since it uses as much as digits as its factorization.

126389399287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 67.

The spelling of 126389399287 in words is "one hundred twenty-six billion, three hundred eighty-nine million, three hundred ninety-nine thousand, two hundred eighty-seven".