70424667648 has 320 divisors, whose sum is σ = 215099089920. Its totient is φ = 22738231296.

The previous prime is 70424667647. The next prime is 70424667707. The reversal of 70424667648 is 84676642407.

70424667648 is a `hidden beast` number, since 70 + 4 + 2 + 466 + 76 + 48 = 666.

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 = 70424667594 and 70424667603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70424667647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69520390 + ... + 69521402.

It is an arithmetic number, because the mean of its divisors is an integer number (672184656).

Almost surely, 2^70424667648 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 70424667648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107549544960).

70424667648 is an abundant number, since it is smaller than the sum of its proper divisors (144674422272).

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

70424667648 is a wasteful number, since it uses less digits than its factorization.

70424667648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 54.

The spelling of 70424667648 in words is "seventy billion, four hundred twenty-four million, six hundred sixty-seven thousand, six hundred forty-eight".