70905857424 has 20 divisors (see below), whose sum is σ = 183173465136. Its totient is φ = 23635285792.

The previous prime is 70905857423. The next prime is 70905857431. The reversal of 70905857424 is 42475850907.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70905857423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 738602634 + ... + 738602729.

Almost surely, 2^70905857424 is an apocalyptic number.

It is an amenable number.

70905857424 is an abundant number, since it is smaller than the sum of its proper divisors (112267607712).

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

70905857424 is a wasteful number, since it uses less digits than its factorization.

70905857424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477205374 (or 1477205368 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 70905857424 in words is "seventy billion, nine hundred five million, eight hundred fifty-seven thousand, four hundred twenty-four".