82216667938 has 8 divisors (see below), whose sum is σ = 123404417388. Its totient is φ = 41081862144.

The previous prime is 82216667921. The next prime is 82216667971. The reversal of 82216667938 is 83976661228.

It can be written as a sum of positive squares in 2 ways, for example, as 81677638849 + 539029089 = 285793^2 + 23217^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13232031 + ... + 13238242.

Almost surely, 2^82216667938 is an apocalyptic number.

82216667938 is a deficient number, since it is larger than the sum of its proper divisors (41187749450).

82216667938 is a wasteful number, since it uses less digits than its factorization.

82216667938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26471828.

The product of its digits is 10450944, while the sum is 58.

The spelling of 82216667938 in words is "eighty-two billion, two hundred sixteen million, six hundred sixty-seven thousand, nine hundred thirty-eight".