8249691026 has 4 divisors (see below), whose sum is σ = 12374536542. Its totient is φ = 4124845512.

The previous prime is 8249690993. The next prime is 8249691029. The reversal of 8249691026 is 6201969428.

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., 8207454025 + 42237001 = 90595^2 + 6499^2 .

It is not an unprimeable number, because it can be changed into a prime (8249691029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2062422755 + ... + 2062422758.

Almost surely, 2^8249691026 is an apocalyptic number.

8249691026 is a deficient number, since it is larger than the sum of its proper divisors (4124845516).

8249691026 is a wasteful number, since it uses less digits than its factorization.

8249691026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124845515.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 8249691026 is about 90827.8097611079. The cubic root of 8249691026 is about 2020.5947849842.

The spelling of 8249691026 in words is "eight billion, two hundred forty-nine million, six hundred ninety-one thousand, twenty-six".