74736691043768 has 64 divisors (see below), whose sum is σ = 151210476920160. Its totient is φ = 34425361022976.

The previous prime is 74736691043723. The next prime is 74736691043789. The reversal of 74736691043768 is 86734019663747.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176442971 + ... + 176866037.

Almost surely, 2^{74736691043768} is an apocalyptic number.

It is an amenable number.

74736691043768 is an abundant number, since it is smaller than the sum of its proper divisors (76473785876392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74736691043768 is a wasteful number, since it uses less digits than its factorization.

74736691043768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426456 (or 426452 counting only the distinct ones).

The product of its (nonzero) digits is 768144384, while the sum is 71.

The spelling of 74736691043768 in words is "seventy-four trillion, seven hundred thirty-six billion, six hundred ninety-one million, forty-three thousand, seven hundred sixty-eight".