732621127680 has 1440 divisors, whose sum is σ = 3005651376000. Its totient is φ = 169699442688.

The previous prime is 732621127673. The next prime is 732621127739. The reversal of 732621127680 is 86721126237.

732621127680 is a `hidden beast` number, since 7 + 3 + 2 + 621 + 12 + 7 + 6 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×732621127680² (a number of 25 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 polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4916920246 + ... + 4916920394.

It is an arithmetic number, because the mean of its divisors is an integer number (2087257900).

Almost surely, 2^732621127680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 732621127680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502825688000).

732621127680 is an abundant number, since it is smaller than the sum of its proper divisors (2273030248320).

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

732621127680 is a wasteful number, since it uses less digits than its factorization.

732621127680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 732621127680 in words is "seven hundred thirty-two billion, six hundred twenty-one million, one hundred twenty-seven thousand, six hundred eighty".