125810077807 has 4 divisors (see below), whose sum is σ = 125907079936. Its totient is φ = 125713075680.

The previous prime is 125810077781. The next prime is 125810077819. The reversal of 125810077807 is 708770018521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125810077807 - 2¹¹ = 125810075759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125810077847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48499119 + ... + 48501712.

It is an arithmetic number, because the mean of its divisors is an integer number (31476769984).

Almost surely, 2^125810077807 is an apocalyptic number.

125810077807 is a deficient number, since it is larger than the sum of its proper divisors (97002129).

125810077807 is an equidigital number, since it uses as much as digits as its factorization.

125810077807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97002128.

The product of its (nonzero) digits is 219520, while the sum is 46.

The spelling of 125810077807 in words is "one hundred twenty-five billion, eight hundred ten million, seventy-seven thousand, eight hundred seven".