74777725168 has 10 divisors (see below), whose sum is σ = 144881842544. Its totient is φ = 37388862576.

The previous prime is 74777725153. The next prime is 74777725171. The reversal of 74777725168 is 86152777747.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2336803896 + ... + 2336803927.

Almost surely, 2^74777725168 is an apocalyptic number.

It is an amenable number.

74777725168 is a deficient number, since it is larger than the sum of its proper divisors (70104117376).

74777725168 is a wasteful number, since it uses less digits than its factorization.

74777725168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673607831 (or 4673607825 counting only the distinct ones).

The product of its digits is 32269440, while the sum is 61.

The spelling of 74777725168 in words is "seventy-four billion, seven hundred seventy-seven million, seven hundred twenty-five thousand, one hundred sixty-eight".