74315218320 has 240 divisors, whose sum is σ = 300241319040. Its totient is φ = 16092297216.

The previous prime is 74315218309. The next prime is 74315218337. The reversal of 74315218320 is 2381251347.

74315218320 is a `hidden beast` number, since 7 + 4 + 31 + 521 + 83 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 292269 + ... + 483788.

It is an arithmetic number, because the mean of its divisors is an integer number (1251005496).

Almost surely, 2^74315218320 is an apocalyptic number.

74315218320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74315218320 is an abundant number, since it is smaller than the sum of its proper divisors (225926100720).

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

74315218320 is a wasteful number, since it uses less digits than its factorization.

74315218320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776102 (or 776093 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 74315218320 its reverse (2381251347), we get a palindrome (76696469667).

The spelling of 74315218320 in words is "seventy-four billion, three hundred fifteen million, two hundred eighteen thousand, three hundred twenty".