74995412665 has 16 divisors (see below), whose sum is σ = 92830441680. Its totient is φ = 58119863040.

The previous prime is 74995412663. The next prime is 74995412669. The reversal of 74995412665 is 56621459947.

It can be written as a sum of positive squares in 8 ways, for example, as 440202361 + 74555210304 = 20981^2 + 273048^2 .

It is not a de Polignac number, because 74995412665 - 2¹ = 74995412663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74995412663) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 842746 + ... + 927475.

It is an arithmetic number, because the mean of its divisors is an integer number (5801902605).

Almost surely, 2^74995412665 is an apocalyptic number.

It is an amenable number.

74995412665 is a deficient number, since it is larger than the sum of its proper divisors (17835029015).

74995412665 is a wasteful number, since it uses less digits than its factorization.

74995412665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770492.

The product of its digits is 16329600, while the sum is 58.

The spelling of 74995412665 in words is "seventy-four billion, nine hundred ninety-five million, four hundred twelve thousand, six hundred sixty-five".