8682521938 has 4 divisors (see below), whose sum is σ = 13023782910. Its totient is φ = 4341260968.

The previous prime is 8682521933. The next prime is 8682521959. The reversal of 8682521938 is 8391252868.

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

It can be written as a sum of positive squares in only one way, i.e., 8327840049 + 354681889 = 91257^2 + 18833^2 .

It is not an unprimeable number, because it can be changed into a prime (8682521933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2170630483 + ... + 2170630486.

Almost surely, 2^8682521938 is an apocalyptic number.

8682521938 is a deficient number, since it is larger than the sum of its proper divisors (4341260972).

8682521938 is a wasteful number, since it uses less digits than its factorization.

8682521938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341260971.

The product of its digits is 1658880, while the sum is 52.

The square root of 8682521938 is about 93180.0511804968. The cubic root of 8682521938 is about 2055.3319014084.

The spelling of 8682521938 in words is "eight billion, six hundred eighty-two million, five hundred twenty-one thousand, nine hundred thirty-eight".