70789643280 has 480 divisors, whose sum is σ = 256213065600. Its totient is φ = 17960279040.

The previous prime is 70789643263. The next prime is 70789643299. The reversal of 70789643280 is 8234698707.

It is a super-2 number, since 2×70789643280² (a number of 23 digits) contains 22 as substring.

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

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, 139075666 + ... + 139076174.

It is an arithmetic number, because the mean of its divisors is an integer number (533777220).

Almost surely, 2^70789643280 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 70789643280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128106532800).

70789643280 is an abundant number, since it is smaller than the sum of its proper divisors (185423422320).

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

70789643280 is a wasteful number, since it uses less digits than its factorization.

70789643280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 70789643280 in words is "seventy billion, seven hundred eighty-nine million, six hundred forty-three thousand, two hundred eighty".