70403321280 has 504 divisors, whose sum is σ = 248265141264. Its totient is φ = 16844636160.

The previous prime is 70403321267. The next prime is 70403321281. The reversal of 70403321280 is 8212330407.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70403321281) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1050795807 + ... + 1050795873.

It is an arithmetic number, because the mean of its divisors is an integer number (492589566).

Almost surely, 2^70403321280 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 70403321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124132570632).

70403321280 is an abundant number, since it is smaller than the sum of its proper divisors (177861819984).

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

70403321280 is a wasteful number, since it uses less digits than its factorization.

70403321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 70403321280 its reverse (8212330407), we get a palindrome (78615651687).

The spelling of 70403321280 in words is "seventy billion, four hundred three million, three hundred twenty-one thousand, two hundred eighty".