7640293213 has 8 divisors (see below), whose sum is σ = 8764225920. Its totient is φ = 6524476080.

The previous prime is 7640293189. The next prime is 7640293229. The reversal of 7640293213 is 3123920467.

7640293213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7640293213 is a prime.

It is a super-2 number, since 2×7640293213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640293273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026873 + ... + 2030638.

It is an arithmetic number, because the mean of its divisors is an integer number (1095528240).

Almost surely, 2^7640293213 is an apocalyptic number.

It is an amenable number.

7640293213 is a deficient number, since it is larger than the sum of its proper divisors (1123932707).

7640293213 is a wasteful number, since it uses less digits than its factorization.

7640293213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057787.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 7640293213 is about 87408.7708013332. The cubic root of 7640293213 is about 1969.5635967204.

The spelling of 7640293213 in words is "seven billion, six hundred forty million, two hundred ninety-three thousand, two hundred thirteen".