73890349974 has 36 divisors (see below), whose sum is σ = 186233843484. Its totient is φ = 21111528312.

The previous prime is 73890349957. The next prime is 73890350047. The reversal of 73890349974 is 47994309837.

73890349974 is a `hidden beast` number, since 73 + 8 + 9 + 0 + 3 + 499 + 74 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 41887072 + ... + 41888835.

It is an arithmetic number, because the mean of its divisors is an integer number (5173162319).

Almost surely, 2^73890349974 is an apocalyptic number.

73890349974 is an abundant number, since it is smaller than the sum of its proper divisors (112343493510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73890349974 is a wasteful number, since it uses less digits than its factorization.

73890349974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83775929 (or 83775919 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 73890349974 in words is "seventy-three billion, eight hundred ninety million, three hundred forty-nine thousand, nine hundred seventy-four".