82689847048 has 8 divisors (see below), whose sum is σ = 155043463230. Its totient is φ = 41344923520.

The previous prime is 82689847021. The next prime is 82689847049. The reversal of 82689847048 is 84074898628.

It can be written as a sum of positive squares in only one way, i.e., 70895452644 + 11794394404 = 266262^2 + 108602^2 .

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

It is a super-2 number, since 2×82689847048² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82689847049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5168115433 + ... + 5168115448.

Almost surely, 2^82689847048 is an apocalyptic number.

It is an amenable number.

82689847048 is a deficient number, since it is larger than the sum of its proper divisors (72353616182).

82689847048 is a wasteful number, since it uses less digits than its factorization.

82689847048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336230887 (or 10336230883 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 64.

The spelling of 82689847048 in words is "eighty-two billion, six hundred eighty-nine million, eight hundred forty-seven thousand, forty-eight".