82871683031 has 4 divisors (see below), whose sum is σ = 83243305152. Its totient is φ = 82500060912.

The previous prime is 82871683003. The next prime is 82871683057. The reversal of 82871683031 is 13038617828.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82871683031 is a prime.

It is a super-2 number, since 2×82871683031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82871683061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185810726 + ... + 185811171.

It is an arithmetic number, because the mean of its divisors is an integer number (20810826288).

Almost surely, 2^82871683031 is an apocalyptic number.

82871683031 is a deficient number, since it is larger than the sum of its proper divisors (371622121).

82871683031 is a wasteful number, since it uses less digits than its factorization.

82871683031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371622120.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 82871683031 in words is "eighty-two billion, eight hundred seventy-one million, six hundred eighty-three thousand, thirty-one".