70909535424 has 672 divisors, whose sum is σ = 245176243200. Its totient is φ = 17913692160.

The previous prime is 70909535399. The next prime is 70909535443. The reversal of 70909535424 is 42453590907.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 396142567 + ... + 396142745.

It is an arithmetic number, because the mean of its divisors is an integer number (364845600).

Almost surely, 2^70909535424 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 70909535424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122588121600).

70909535424 is an abundant number, since it is smaller than the sum of its proper divisors (174266707776).

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

70909535424 is a wasteful number, since it uses less digits than its factorization.

70909535424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 70909535424 in words is "seventy billion, nine hundred nine million, five hundred thirty-five thousand, four hundred twenty-four".