70644652848 has 960 divisors, whose sum is σ = 270382694400. Its totient is φ = 17322439680.

The previous prime is 70644652811. The next prime is 70644652853. The reversal of 70644652848 is 84825644607.

It is a happy number.

70644652848 is a `hidden beast` number, since 70 + 6 + 4 + 4 + 6 + 528 + 48 = 666.

It is a super-2 number, since 2×70644652848² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 70644652794 and 70644652803.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 685870365 + ... + 685870467.

It is an arithmetic number, because the mean of its divisors is an integer number (281648640).

Almost surely, 2^70644652848 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 70644652848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135191347200).

70644652848 is an abundant number, since it is smaller than the sum of its proper divisors (199738041552).

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

70644652848 is a wasteful number, since it uses less digits than its factorization.

70644652848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 70644652848 in words is "seventy billion, six hundred forty-four million, six hundred fifty-two thousand, eight hundred forty-eight".