74736691043848 has 8 divisors (see below), whose sum is σ = 140131295707230. Its totient is φ = 37368345521920.

The previous prime is 74736691043821. The next prime is 74736691043969. The reversal of 74736691043848 is 84834019663747.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74597112589444 + 139578454404 = 8636962^2 + 373602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4671043190233 + ... + 4671043190248.

Almost surely, 2^{74736691043848} is an apocalyptic number.

It is an amenable number.

74736691043848 is a deficient number, since it is larger than the sum of its proper divisors (65394604663382).

74736691043848 is a wasteful number, since it uses less digits than its factorization.

74736691043848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9342086380487 (or 9342086380483 counting only the distinct ones).

The product of its (nonzero) digits is 585252864, while the sum is 70.

The spelling of 74736691043848 in words is "seventy-four trillion, seven hundred thirty-six billion, six hundred ninety-one million, forty-three thousand, eight hundred forty-eight".