74464787644 has 96 divisors (see below), whose sum is σ = 146712416256. Its totient is φ = 32838359040.

The previous prime is 74464787641. The next prime is 74464787651. The reversal of 74464787644 is 44678746447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74464787641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43879404 + ... + 43881100.

It is an arithmetic number, because the mean of its divisors is an integer number (1528254336).

Almost surely, 2^74464787644 is an apocalyptic number.

It is an amenable number.

74464787644 is a deficient number, since it is larger than the sum of its proper divisors (72247628612).

74464787644 is a wasteful number, since it uses less digits than its factorization.

74464787644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2073 counting only the distinct ones).

The product of its digits is 101154816, while the sum is 61.

The spelling of 74464787644 in words is "seventy-four billion, four hundred sixty-four million, seven hundred eighty-seven thousand, six hundred forty-four".