74485965986 has 4 divisors (see below), whose sum is σ = 111728948982. Its totient is φ = 37242982992.

The previous prime is 74485965979. The next prime is 74485965997. The reversal of 74485965986 is 68956958447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68956958447 = 13 ⋅5304381419.

It can be written as a sum of positive squares in only one way, i.e., 69762015625 + 4723950361 = 264125^2 + 68731^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18621491495 + ... + 18621491498.

Almost surely, 2^74485965986 is an apocalyptic number.

74485965986 is a deficient number, since it is larger than the sum of its proper divisors (37242982996).

74485965986 is a wasteful number, since it uses less digits than its factorization.

74485965986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37242982995.

The product of its digits is 522547200, while the sum is 71.

The spelling of 74485965986 in words is "seventy-four billion, four hundred eighty-five million, nine hundred sixty-five thousand, nine hundred eighty-six".