1011736849 has 4 divisors (see below), whose sum is σ = 1012054564. Its totient is φ = 1011419136.

The previous prime is 1011736841. The next prime is 1011736867. The reversal of 1011736849 is 9486371101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 489294400 + 522442449 = 22120^2 + 22857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011736849 - 2³ = 1011736841 is a prime.

It is a super-2 number, since 2×1011736849² = 2047222903248897602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011736841) 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, 154032 + ... + 160465.

It is an arithmetic number, because the mean of its divisors is an integer number (253013641).

Almost surely, 2^1011736849 is an apocalyptic number.

It is an amenable number.

1011736849 is a deficient number, since it is larger than the sum of its proper divisors (317715).

1011736849 is an equidigital number, since it uses as much as digits as its factorization.

1011736849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317714.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1011736849 is about 31807.8111318588. The cubic root of 1011736849 is about 1003.8970760695.

The spelling of 1011736849 in words is "one billion, eleven million, seven hundred thirty-six thousand, eight hundred forty-nine".