7640082638 has 8 divisors (see below), whose sum is σ = 11958390288. Its totient is φ = 3653952544.

The previous prime is 7640082631. The next prime is 7640082641. The reversal of 7640082638 is 8362800467.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640082631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83044331 + ... + 83044422.

It is an arithmetic number, because the mean of its divisors is an integer number (1494798786).

Almost surely, 2^7640082638 is an apocalyptic number.

7640082638 is a deficient number, since it is larger than the sum of its proper divisors (4318307650).

7640082638 is a wasteful number, since it uses less digits than its factorization.

7640082638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166088778.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 7640082638 is about 87407.5662514407. The cubic root of 7640082638 is about 1969.5455020979.

The spelling of 7640082638 in words is "seven billion, six hundred forty million, eighty-two thousand, six hundred thirty-eight".