7640444011 has 4 divisors (see below), whose sum is σ = 8089881912. Its totient is φ = 7191006112.

The previous prime is 7640444003. The next prime is 7640444059. The reversal of 7640444011 is 1104440467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1104440467 = 13 ⋅84956959.

It is a cyclic number.

It is not a de Polignac number, because 7640444011 - 2³ = 7640444003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640444111) 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, 224718925 + ... + 224718958.

It is an arithmetic number, because the mean of its divisors is an integer number (2022470478).

Almost surely, 2^7640444011 is an apocalyptic number.

7640444011 is a deficient number, since it is larger than the sum of its proper divisors (449437901).

7640444011 is a wasteful number, since it uses less digits than its factorization.

7640444011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449437900.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 7640444011 is about 87409.6333992999. The cubic root of 7640444011 is about 1969.5765545258.

Adding to 7640444011 its reverse (1104440467), we get a palindrome (8744884478).

The spelling of 7640444011 in words is "seven billion, six hundred forty million, four hundred forty-four thousand, eleven".