74320553998 has 16 divisors (see below), whose sum is σ = 118122377760. Its totient is φ = 34949533696.

The previous prime is 74320553953. The next prime is 74320554029. The reversal of 74320553998 is 89935502347.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727786 + ... + 823597.

It is an arithmetic number, because the mean of its divisors is an integer number (7382648610).

Almost surely, 2^74320553998 is an apocalyptic number.

74320553998 is a deficient number, since it is larger than the sum of its proper divisors (43801823762).

74320553998 is a wasteful number, since it uses less digits than its factorization.

74320553998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552811.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 74320553998 in words is "seventy-four billion, three hundred twenty million, five hundred fifty-three thousand, nine hundred ninety-eight".