74405555773 has 8 divisors (see below), whose sum is σ = 76338158400. Its totient is φ = 72478564320.

The previous prime is 74405555767. The next prime is 74405555801. The reversal of 74405555773 is 37755550447.

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 74405555773 - 2²¹ = 74403458621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74405555773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74405555713) 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, 1375923 + ... + 1428976.

It is an arithmetic number, because the mean of its divisors is an integer number (9542269800).

Almost surely, 2^74405555773 is an apocalyptic number.

It is an amenable number.

74405555773 is a deficient number, since it is larger than the sum of its proper divisors (1932602627).

74405555773 is a wasteful number, since it uses less digits than its factorization.

74405555773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805587.

The product of its (nonzero) digits is 10290000, while the sum is 52.

The spelling of 74405555773 in words is "seventy-four billion, four hundred five million, five hundred fifty-five thousand, seven hundred seventy-three".