74213801805 has 96 divisors (see below), whose sum is σ = 146670306048. Its totient is φ = 31770224640.

The previous prime is 74213801797. The next prime is 74213801813. The reversal of 74213801805 is 50810831247.

It is an interprime number because it is at equal distance from previous prime (74213801797) and next prime (74213801813).

It is not a de Polignac number, because 74213801805 - 2³ = 74213801797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 474309 + ... + 611061.

It is an arithmetic number, because the mean of its divisors is an integer number (1527815688).

Almost surely, 2^74213801805 is an apocalyptic number.

It is an amenable number.

74213801805 is a deficient number, since it is larger than the sum of its proper divisors (72456504243).

74213801805 is a wasteful number, since it uses less digits than its factorization.

74213801805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136819 (or 136808 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 74213801805 in words is "seventy-four billion, two hundred thirteen million, eight hundred one thousand, eight hundred five".