125919999607 has 4 divisors (see below), whose sum is σ = 127437108120. Its totient is φ = 124402891096.

The previous prime is 125919999599. The next prime is 125919999613. The reversal of 125919999607 is 706999919521.

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 125919999607 - 2³ = 125919999599 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 (125919999407) 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, 758554132 + ... + 758554297.

It is an arithmetic number, because the mean of its divisors is an integer number (31859277030).

Almost surely, 2^125919999607 is an apocalyptic number.

125919999607 is a deficient number, since it is larger than the sum of its proper divisors (1517108513).

125919999607 is an equidigital number, since it uses as much as digits as its factorization.

125919999607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517108512.

The product of its (nonzero) digits is 24800580, while the sum is 67.

The spelling of 125919999607 in words is "one hundred twenty-five billion, nine hundred nineteen million, nine hundred ninety-nine thousand, six hundred seven".