74995412669 has 2 divisors, whose sum is σ = 74995412670. Its totient is φ = 74995412668.

The previous prime is 74995412663. The next prime is 74995412683. The reversal of 74995412669 is 96621459947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66958290169 + 8037122500 = 258763^2 + 89650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74995412669 is a prime.

It is a super-2 number, since 2×74995412669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74995412663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37497706334 + 37497706335.

It is an arithmetic number, because the mean of its divisors is an integer number (37497706335).

Almost surely, 2^74995412669 is an apocalyptic number.

It is an amenable number.

74995412669 is a deficient number, since it is larger than the sum of its proper divisors (1).

74995412669 is an equidigital number, since it uses as much as digits as its factorization.

74995412669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 62.

The spelling of 74995412669 in words is "seventy-four billion, nine hundred ninety-five million, four hundred twelve thousand, six hundred sixty-nine".