82113431128 has 8 divisors (see below), whose sum is σ = 153962683380. Its totient is φ = 41056715560.

The previous prime is 82113431087. The next prime is 82113431143.

82113431128 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×82113431128² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82113431093 and 82113431102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5132089438 + ... + 5132089453.

Almost surely, 2^82113431128 is an apocalyptic number.

It is an amenable number.

82113431128 is a deficient number, since it is larger than the sum of its proper divisors (71849252252).

82113431128 is a wasteful number, since it uses less digits than its factorization.

82113431128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10264178897 (or 10264178893 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The spelling of 82113431128 in words is "eighty-two billion, one hundred thirteen million, four hundred thirty-one thousand, one hundred twenty-eight".