74909483986 has 8 divisors (see below), whose sum is σ = 112631125644. Its totient is φ = 37365775440.

The previous prime is 74909483983. The next prime is 74909483993. The reversal of 74909483986 is 68938490947.

It can be written as a sum of positive squares in 2 ways, for example, as 74566678761 + 342805225 = 273069^2 + 18515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74909483986² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74909483981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44482225 + ... + 44483908.

Almost surely, 2^74909483986 is an apocalyptic number.

74909483986 is a deficient number, since it is larger than the sum of its proper divisors (37721641658).

74909483986 is a wasteful number, since it uses less digits than its factorization.

74909483986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88966556.

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 74909483986 in words is "seventy-four billion, nine hundred nine million, four hundred eighty-three thousand, nine hundred eighty-six".