125787465827 has 2 divisors, whose sum is σ = 125787465828. Its totient is φ = 125787465826.

The previous prime is 125787465799. The next prime is 125787465847. The reversal of 125787465827 is 728564787521.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (728564787521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125787465827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125787465827.

It is not a weakly prime, because it can be changed into another prime (125787465847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62893732913 + 62893732914.

It is an arithmetic number, because the mean of its divisors is an integer number (62893732914).

Almost surely, 2^125787465827 is an apocalyptic number.

125787465827 is a deficient number, since it is larger than the sum of its proper divisors (1).

125787465827 is an equidigital number, since it uses as much as digits as its factorization.

125787465827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52684800, while the sum is 62.

The spelling of 125787465827 in words is "one hundred twenty-five billion, seven hundred eighty-seven million, four hundred sixty-five thousand, eight hundred twenty-seven".