70044848640 has 360 divisors, whose sum is σ = 262695412980. Its totient is φ = 17240850432.

The previous prime is 70044848611. The next prime is 70044848647. The reversal of 70044848640 is 4684844007.

It can be written as a sum of positive squares in 6 ways, for example, as 14250629376 + 55794219264 = 119376^2 + 236208^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (70044848647) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3884766 + ... + 3902754.

Almost surely, 2^70044848640 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 70044848640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131347706490).

70044848640 is an abundant number, since it is smaller than the sum of its proper divisors (192650564340).

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

70044848640 is a wasteful number, since it uses less digits than its factorization.

70044848640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18044 (or 18012 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The spelling of 70044848640 in words is "seventy billion, forty-four million, eight hundred forty-eight thousand, six hundred forty".