7640573361 has 8 divisors (see below), whose sum is σ = 10354438464. Its totient is φ = 5010211920.

The previous prime is 7640573351. The next prime is 7640573407. The reversal of 7640573361 is 1633750467.

It is a happy number.

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

It is not a de Polignac number, because 7640573361 - 2⁷ = 7640573233 is a prime.

It is a super-2 number, since 2×7640573361² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7640573351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20875701 + ... + 20876066.

It is an arithmetic number, because the mean of its divisors is an integer number (1294304808).

Almost surely, 2^7640573361 is an apocalyptic number.

It is an amenable number.

7640573361 is a deficient number, since it is larger than the sum of its proper divisors (2713865103).

7640573361 is a wasteful number, since it uses less digits than its factorization.

7640573361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41751831.

The product of its (nonzero) digits is 317520, while the sum is 42.

The square root of 7640573361 is about 87410.3733031727. The cubic root of 7640573361 is about 1969.5876692066.

The spelling of 7640573361 in words is "seven billion, six hundred forty million, five hundred seventy-three thousand, three hundred sixty-one".