74213801775 has 60 divisors (see below), whose sum is σ = 137531105184. Its totient is φ = 39562992000.

The previous prime is 74213801771. The next prime is 74213801797. The reversal of 74213801775 is 57710831247.

It is not a de Polignac number, because 74213801775 - 2² = 74213801771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 74213801775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74213801771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5401915 + ... + 5415635.

Almost surely, 2^74213801775 is an apocalyptic number.

74213801775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

74213801775 is a deficient number, since it is larger than the sum of its proper divisors (63317303409).

74213801775 is a wasteful number, since it uses less digits than its factorization.

74213801775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16414 (or 16400 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 74213801775 in words is "seventy-four billion, two hundred thirteen million, eight hundred one thousand, seven hundred seventy-five".