76290721615936 has 21 divisors (see below), whose sum is σ = 151389539366239. Its totient is φ = 38145325870144.

The previous prime is 76290721615921. The next prime is 76290721616029. The reversal of 76290721615936 is 63951612709267.

The square root of 76290721615936 is 8734456.

It is a perfect power (a square), and thus also a powerful number.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 69329745 + ... + 70421551.

Almost surely, 2^{76290721615936} is an apocalyptic number.

76290721615936 is the 8734456-th square number.

It is an amenable number.

76290721615936 is a deficient number, since it is larger than the sum of its proper divisors (75098817750303).

76290721615936 is an frugal number, since it uses more digits than its factorization.

76290721615936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183626 (or 1091809 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 64.

76290721615936 divided by its sum of digits (64) gives a square (1192042525249 = 1091807²).

The spelling of 76290721615936 in words is "seventy-six trillion, two hundred ninety billion, seven hundred twenty-one million, six hundred fifteen thousand, nine hundred thirty-six".