172113748619 has 2 divisors, whose sum is σ = 172113748620. Its totient is φ = 172113748618.

The previous prime is 172113748577. The next prime is 172113748699. The reversal of 172113748619 is 916847311271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172113748619 - 2²⁰ = 172112700043 is a prime.

It is a super-2 number, since 2×172113748619² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172113748699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86056874309 + 86056874310.

It is an arithmetic number, because the mean of its divisors is an integer number (86056874310).

Almost surely, 2^172113748619 is an apocalyptic number.

172113748619 is a deficient number, since it is larger than the sum of its proper divisors (1).

172113748619 is an equidigital number, since it uses as much as digits as its factorization.

172113748619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 50.

The spelling of 172113748619 in words is "one hundred seventy-two billion, one hundred thirteen million, seven hundred forty-eight thousand, six hundred nineteen".