8182644949 has 4 divisors (see below), whose sum is σ = 8183664864. Its totient is φ = 8181625036.

The previous prime is 8182644947. The next prime is 8182644983. The reversal of 8182644949 is 9494462818.

It is a happy number.

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 8182644949 - 2¹ = 8182644947 is a prime.

It is a super-2 number, since 2×8182644949² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8182644949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8182644947) 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, 497827 + ... + 514000.

It is an arithmetic number, because the mean of its divisors is an integer number (2045916216).

Almost surely, 2^8182644949 is an apocalyptic number.

It is an amenable number.

8182644949 is a deficient number, since it is larger than the sum of its proper divisors (1019915).

8182644949 is a wasteful number, since it uses less digits than its factorization.

8182644949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019914.

The product of its digits is 3981312, while the sum is 55.

The square root of 8182644949 is about 90457.9733854346. The cubic root of 8182644949 is about 2015.1060291026.

The spelling of 8182644949 in words is "eight billion, one hundred eighty-two million, six hundred forty-four thousand, nine hundred forty-nine".