747055523520 has 672 divisors, whose sum is σ = 2758025350080. Its totient is φ = 184945213440.

The previous prime is 747055523509. The next prime is 747055523527. The reversal of 747055523520 is 25325550747.

747055523520 is a `hidden beast` number, since 7 + 4 + 70 + 5 + 5 + 52 + 3 + 520 = 666.

It is a super-3 number, since 3×747055523520³ (a number of 37 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (747055523527) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1725301224 + ... + 1725301656.

It is an arithmetic number, because the mean of its divisors is an integer number (4104204390).

Almost surely, 2^747055523520 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 747055523520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379012675040).

747055523520 is an abundant number, since it is smaller than the sum of its proper divisors (2010969826560).

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

747055523520 is a wasteful number, since it uses less digits than its factorization.

747055523520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 45.

The spelling of 747055523520 in words is "seven hundred forty-seven billion, fifty-five million, five hundred twenty-three thousand, five hundred twenty".