70041445920 has 144 divisors (see below), whose sum is σ = 239899750272. Its totient is φ = 18608693760.

The previous prime is 70041445919. The next prime is 70041445933. The reversal of 70041445920 is 2954414007.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300499 + ... + 479981.

It is an arithmetic number, because the mean of its divisors is an integer number (1665970488).

Almost surely, 2^70041445920 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 70041445920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119949875136).

70041445920 is an abundant number, since it is smaller than the sum of its proper divisors (169858304352).

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

70041445920 is a wasteful number, since it uses less digits than its factorization.

70041445920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179775 (or 179764 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 70041445920 its reverse (2954414007), we get a palindrome (72995859927).

The spelling of 70041445920 in words is "seventy billion, forty-one million, four hundred forty-five thousand, nine hundred twenty".