73404636480 has 1120 divisors, whose sum is σ = 318650112000. Its totient is φ = 15667458048.

The previous prime is 73404636457. The next prime is 73404636491. The reversal of 73404636480 is 8463640437.

73404636480 is a `hidden beast` number, since 7 + 3 + 4 + 0 + 4 + 636 + 4 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

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 polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 368867421 + ... + 368867619.

Almost surely, 2^73404636480 is an apocalyptic number.

73404636480 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 73404636480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159325056000).

73404636480 is an abundant number, since it is smaller than the sum of its proper divisors (245245475520).

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

73404636480 is a wasteful number, since it uses less digits than its factorization.

73404636480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 73404636480 in words is "seventy-three billion, four hundred four million, six hundred thirty-six thousand, four hundred eighty".