1826672649 has 32 divisors (see below), whose sum is σ = 2514602880. Its totient is φ = 1179113472.

The previous prime is 1826672641. The next prime is 1826672671. The reversal of 1826672649 is 9462766281.

It is not a de Polignac number, because 1826672649 - 2³ = 1826672641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1826672641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3210037 + ... + 3210605.

It is an arithmetic number, because the mean of its divisors is an integer number (78581340).

Almost surely, 2^1826672649 is an apocalyptic number.

It is an amenable number.

1826672649 is a deficient number, since it is larger than the sum of its proper divisors (687930231).

1826672649 is a wasteful number, since it uses less digits than its factorization.

1826672649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889.

The product of its digits is 1741824, while the sum is 51.

The square root of 1826672649 is about 42739.5911187742. The cubic root of 1826672649 is about 1222.4194236813.

The spelling of 1826672649 in words is "one billion, eight hundred twenty-six million, six hundred seventy-two thousand, six hundred forty-nine".