125416499819 has 16 divisors (see below), whose sum is σ = 137137717248. Its totient is φ = 113993000352.

The previous prime is 125416499807. The next prime is 125416499837. The reversal of 125416499819 is 918994614521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125416499819 is a prime.

It is a super-2 number, since 2×125416499819² (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 (125416499899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2119574 + ... + 2177940.

It is an arithmetic number, because the mean of its divisors is an integer number (8571107328).

Almost surely, 2^125416499819 is an apocalyptic number.

125416499819 is a deficient number, since it is larger than the sum of its proper divisors (11721217429).

125416499819 is a wasteful number, since it uses less digits than its factorization.

125416499819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60914.

The product of its digits is 5598720, while the sum is 59.

The spelling of 125416499819 in words is "one hundred twenty-five billion, four hundred sixteen million, four hundred ninety-nine thousand, eight hundred nineteen".