74996409601 has 4 divisors (see below), whose sum is σ = 74997222192. Its totient is φ = 74995597012.

The previous prime is 74996409577. The next prime is 74996409611. The reversal of 74996409601 is 10690469947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10690469947 = 19 ⋅562656313.

It is a cyclic number.

It is not a de Polignac number, because 74996409601 - 2¹¹ = 74996407553 is a prime.

It is a super-2 number, since 2×74996409601² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74996409611) 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, 247051 + ... + 459376.

It is an arithmetic number, because the mean of its divisors is an integer number (18749305548).

Almost surely, 2^74996409601 is an apocalyptic number.

It is an amenable number.

74996409601 is a deficient number, since it is larger than the sum of its proper divisors (812591).

74996409601 is a wasteful number, since it uses less digits than its factorization.

74996409601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812590.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 74996409601 in words is "seventy-four billion, nine hundred ninety-six million, four hundred nine thousand, six hundred one".