720470288135520 has 384 divisors, whose sum is σ = 2715667278266880. Its totient is φ = 177343365150720.

The previous prime is 720470288135501. The next prime is 720470288135539. The reversal of 720470288135520 is 25531882074027.

720470288135520 is a `hidden beast` number, since 7 + 2 + 0 + 4 + 7 + 0 + 2 + 8 + 81 + 3 + 552 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (720470288135501) and next prime (720470288135539).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5469188055 + ... + 5469319785.

It is an arithmetic number, because the mean of its divisors is an integer number (7072050203820).

Almost surely, 2^{720470288135520} 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 720470288135520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357833639133440).

720470288135520 is an abundant number, since it is smaller than the sum of its proper divisors (1995196990131360).

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

720470288135520 is a wasteful number, since it uses less digits than its factorization.

720470288135520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229155 (or 229141 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 720470288135520 in words is "seven hundred twenty trillion, four hundred seventy billion, two hundred eighty-eight million, one hundred thirty-five thousand, five hundred twenty".