82070274309 has 8 divisors (see below), whose sum is σ = 110926033152. Its totient is φ = 53964015840.

The previous prime is 82070274241. The next prime is 82070274317. The reversal of 82070274309 is 90347207028.

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

It is a de Polignac number, because none of the positive numbers 2^k-82070274309 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82070274389) 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, 187374837 + ... + 187375274.

It is an arithmetic number, because the mean of its divisors is an integer number (13865754144).

Almost surely, 2^82070274309 is an apocalyptic number.

It is an amenable number.

82070274309 is a deficient number, since it is larger than the sum of its proper divisors (28855758843).

82070274309 is a wasteful number, since it uses less digits than its factorization.

82070274309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374750187.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 82070274309 in words is "eighty-two billion, seventy million, two hundred seventy-four thousand, three hundred nine".