70748280155520 has 768 divisors, whose sum is σ = 282533940449280. Its totient is φ = 16122488094720.

The previous prime is 70748280155473. The next prime is 70748280155569. The reversal of 70748280155520 is 2555108284707.

It is a happy number.

70748280155520 is a `hidden beast` number, since 7 + 0 + 7 + 4 + 8 + 2 + 80 + 1 + 5 + 552 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 890738529 + ... + 890817951.

It is an arithmetic number, because the mean of its divisors is an integer number (367882734960).

Almost surely, 2^{70748280155520} 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 70748280155520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141266970224640).

70748280155520 is an abundant number, since it is smaller than the sum of its proper divisors (211785660293760).

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

70748280155520 is a wasteful number, since it uses less digits than its factorization.

70748280155520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80303 (or 80288 counting only the distinct ones).

The product of its (nonzero) digits is 6272000, while the sum is 54.

The spelling of 70748280155520 in words is "seventy trillion, seven hundred forty-eight billion, two hundred eighty million, one hundred fifty-five thousand, five hundred twenty".