70044415921 has 8 divisors (see below), whose sum is σ = 70136448480. Its totient is φ = 69952420992.

The previous prime is 70044415913. The next prime is 70044415927. The reversal of 70044415921 is 12951444007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70044415921 - 2³ = 70044415913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70044415927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6314446 + ... + 6325528.

It is an arithmetic number, because the mean of its divisors is an integer number (8767056060).

Almost surely, 2^70044415921 is an apocalyptic number.

It is an amenable number.

70044415921 is a deficient number, since it is larger than the sum of its proper divisors (92032559).

70044415921 is a wasteful number, since it uses less digits than its factorization.

70044415921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18815.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 70044415921 its reverse (12951444007), we get a palindrome (82995859928).

The spelling of 70044415921 in words is "seventy billion, forty-four million, four hundred fifteen thousand, nine hundred twenty-one".