74171606650 has 12 divisors (see below), whose sum is σ = 137959188462. Its totient is φ = 29668642640.

The previous prime is 74171606647. The next prime is 74171606669. The reversal of 74171606650 is 5660617147.

It can be written as a sum of positive squares in 3 ways, for example, as 57803218929 + 16368387721 = 240423^2 + 127939^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74171606597 and 74171606606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 741716017 + ... + 741716116.

Almost surely, 2^74171606650 is an apocalyptic number.

74171606650 is a deficient number, since it is larger than the sum of its proper divisors (63787581812).

74171606650 is a wasteful number, since it uses less digits than its factorization.

74171606650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483432145 (or 1483432140 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 74171606650 in words is "seventy-four billion, one hundred seventy-one million, six hundred six thousand, six hundred fifty".