70545612384 has 144 divisors (see below), whose sum is σ = 217373253552. Its totient is φ = 21572987904.

The previous prime is 70545612383. The next prime is 70545612409. The reversal of 70545612384 is 48321654507.

70545612384 is a `hidden beast` number, since 7 + 0 + 5 + 4 + 561 + 2 + 3 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70545612383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552474 + ... + 668070.

It is an arithmetic number, because the mean of its divisors is an integer number (1509536483).

Almost surely, 2^70545612384 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 70545612384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108686626776).

70545612384 is an abundant number, since it is smaller than the sum of its proper divisors (146827641168).

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

70545612384 is a wasteful number, since it uses less digits than its factorization.

70545612384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115789 (or 115778 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 70545612384 in words is "seventy billion, five hundred forty-five million, six hundred twelve thousand, three hundred eighty-four".