76338657421 has 8 divisors (see below), whose sum is σ = 82213246080. Its totient is φ = 70464409392.

The previous prime is 76338657397. The next prime is 76338657491. The reversal of 76338657421 is 12475683367.

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

It is not a de Polignac number, because 76338657421 - 2⁷ = 76338657293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76338657491) 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 7 ways as a sum of consecutive naturals, for example, 563160 + ... + 685438.

It is an arithmetic number, because the mean of its divisors is an integer number (10276655760).

Almost surely, 2^76338657421 is an apocalyptic number.

It is an amenable number.

76338657421 is a deficient number, since it is larger than the sum of its proper divisors (5874588659).

76338657421 is a wasteful number, since it uses less digits than its factorization.

76338657421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170315.

The product of its digits is 5080320, while the sum is 52.

The spelling of 76338657421 in words is "seventy-six billion, three hundred thirty-eight million, six hundred fifty-seven thousand, four hundred twenty-one".