7640293211 has 4 divisors (see below), whose sum is σ = 7640578512. Its totient is φ = 7640007912.

The previous prime is 7640293189. The next prime is 7640293229. The reversal of 7640293211 is 1123920467.

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

It is a cyclic number.

It is not a de Polignac number, because 7640293211 - 2⁶ = 7640293147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640293231) 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, 97775 + ... + 157608.

It is an arithmetic number, because the mean of its divisors is an integer number (1910144628).

Almost surely, 2^7640293211 is an apocalyptic number.

7640293211 is a deficient number, since it is larger than the sum of its proper divisors (285301).

7640293211 is a wasteful number, since it uses less digits than its factorization.

7640293211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285300.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7640293211 is about 87408.7707898927. The cubic root of 7640293211 is about 1969.5635965485.

The spelling of 7640293211 in words is "seven billion, six hundred forty million, two hundred ninety-three thousand, two hundred eleven".