70985405760 has 448 divisors, whose sum is σ = 240506219520. Its totient is φ = 17712414720.

The previous prime is 70985405713. The next prime is 70985405783. The reversal of 70985405760 is 6750458907.

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, 115048972 + ... + 115049588.

It is an arithmetic number, because the mean of its divisors is an integer number (536844240).

Almost surely, 2^70985405760 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 70985405760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120253109760).

70985405760 is an abundant number, since it is smaller than the sum of its proper divisors (169520813760).

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

70985405760 is a wasteful number, since it uses less digits than its factorization.

70985405760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 70985405760 in words is "seventy billion, nine hundred eighty-five million, four hundred five thousand, seven hundred sixty".