74042763664 has 45 divisors (see below), whose sum is σ = 146057231073. Its totient is φ = 36362336256.

The previous prime is 74042763661. The next prime is 74042763701. The reversal of 74042763664 is 46636724047.

The square root of 74042763664 is 272108.

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

It can be written as a sum of positive squares in only one way, i.e., 58515610000 + 15527153664 = 241900^2 + 124608^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74042763661) 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 8 ways as a sum of consecutive naturals, for example, 64216912 + ... + 64218064.

Almost surely, 2^74042763664 is an apocalyptic number.

74042763664 is the 272108-th square number.

It is an amenable number.

74042763664 is a deficient number, since it is larger than the sum of its proper divisors (72014467409).

74042763664 is an frugal number, since it uses more digits than its factorization.

74042763664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 49.

Multiplying 74042763664 by its sum of digits (49), we get a square (3628095419536 = 1904756²).

The spelling of 74042763664 in words is "seventy-four billion, forty-two million, seven hundred sixty-three thousand, six hundred sixty-four".