70443627264 has 144 divisors (see below), whose sum is σ = 209088445440. Its totient is φ = 23393940480.

The previous prime is 70443627259. The next prime is 70443627301. The reversal of 70443627264 is 46272634407.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1854349 + ... + 1891955.

Almost surely, 2^70443627264 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 70443627264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104544222720).

70443627264 is an abundant number, since it is smaller than the sum of its proper divisors (138644818176).

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

70443627264 is a wasteful number, since it uses less digits than its factorization.

70443627264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37903 (or 37883 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 70443627264 in words is "seventy billion, four hundred forty-three million, six hundred twenty-seven thousand, two hundred sixty-four".