73574275320 has 1536 divisors, whose sum is σ = 336317184000. Its totient is φ = 13884825600.

The previous prime is 73574275283. The next prime is 73574275331. The reversal of 73574275320 is 2357247537.

It is a happy number.

73574275320 is a `hidden beast` number, since 7 + 3 + 57 + 4 + 275 + 320 = 666.

It is a super-2 number, since 2×73574275320² (a number of 23 digits) contains 22 as substring.

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

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 383 ways as a sum of consecutive naturals, for example, 1794494500 + ... + 1794494540.

It is an arithmetic number, because the mean of its divisors is an integer number (218956500).

Almost surely, 2^73574275320 is an apocalyptic number.

73574275320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73574275320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168158592000).

73574275320 is an abundant number, since it is smaller than the sum of its proper divisors (262742908680).

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

73574275320 is a wasteful number, since it uses less digits than its factorization.

73574275320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 45.

The spelling of 73574275320 in words is "seventy-three billion, five hundred seventy-four million, two hundred seventy-five thousand, three hundred twenty".