125864764919 has 8 divisors (see below), whose sum is σ = 126369467088. Its totient is φ = 125360179200.

The previous prime is 125864764889. The next prime is 125864764939. The reversal of 125864764919 is 919467468521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125864764919 - 2²⁰ = 125863716343 is a prime.

It is a super-2 number, since 2×125864764919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125864764939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2614769 + ... + 2662469.

It is an arithmetic number, because the mean of its divisors is an integer number (15796183386).

Almost surely, 2^125864764919 is an apocalyptic number.

125864764919 is a deficient number, since it is larger than the sum of its proper divisors (504702169).

125864764919 is a wasteful number, since it uses less digits than its factorization.

125864764919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58225.

The product of its digits is 26127360, while the sum is 62.

The spelling of 125864764919 in words is "one hundred twenty-five billion, eight hundred sixty-four million, seven hundred sixty-four thousand, nine hundred nineteen".