8272457149 has 4 divisors (see below), whose sum is σ = 9024498720. Its totient is φ = 7520415580.

The previous prime is 8272457131. The next prime is 8272457153. The reversal of 8272457149 is 9417542728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8272457149 - 2²⁵ = 8238902717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8272457189) 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, 376020769 + ... + 376020790.

It is an arithmetic number, because the mean of its divisors is an integer number (2256124680).

Almost surely, 2^8272457149 is an apocalyptic number.

It is an amenable number.

8272457149 is a deficient number, since it is larger than the sum of its proper divisors (752041571).

8272457149 is a wasteful number, since it uses less digits than its factorization.

8272457149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752041570.

The product of its digits is 1128960, while the sum is 49.

The square root of 8272457149 is about 90953.0491462491. The cubic root of 8272457149 is about 2022.4517781176.

The spelling of 8272457149 in words is "eight billion, two hundred seventy-two million, four hundred fifty-seven thousand, one hundred forty-nine".