74955867697 has 8 divisors (see below), whose sum is σ = 77543744040. Its totient is φ = 72368204160.

The previous prime is 74955867643. The next prime is 74955867739. The reversal of 74955867697 is 79676855947.

It can be written as a sum of positive squares in 4 ways, for example, as 17574539761 + 57381327936 = 132569^2 + 239544^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 74955867697 - 2³¹ = 72808384049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74955867607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054863 + ... + 1123675.

It is an arithmetic number, because the mean of its divisors is an integer number (9692968005).

Almost surely, 2^74955867697 is an apocalyptic number.

It is an amenable number.

74955867697 is a deficient number, since it is larger than the sum of its proper divisors (2587876343).

74955867697 is a wasteful number, since it uses less digits than its factorization.

74955867697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106403.

The product of its digits is 800150400, while the sum is 73.

The spelling of 74955867697 in words is "seventy-four billion, nine hundred fifty-five million, eight hundred sixty-seven thousand, six hundred ninety-seven".