125638822299 has 4 divisors (see below), whose sum is σ = 167518429736. Its totient is φ = 83759214864.

The previous prime is 125638822297. The next prime is 125638822349. The reversal of 125638822299 is 992228836521.

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

It is not a de Polignac number, because 125638822299 - 2¹ = 125638822297 is a prime.

It is a super-2 number, since 2×125638822299² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125638822297) 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, 20939803714 + ... + 20939803719.

It is an arithmetic number, because the mean of its divisors is an integer number (41879607434).

Almost surely, 2^125638822299 is an apocalyptic number.

125638822299 is a deficient number, since it is larger than the sum of its proper divisors (41879607437).

125638822299 is an equidigital number, since it uses as much as digits as its factorization.

125638822299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41879607436.

The product of its digits is 7464960, while the sum is 57.

The spelling of 125638822299 in words is "one hundred twenty-five billion, six hundred thirty-eight million, eight hundred twenty-two thousand, two hundred ninety-nine".