70656768 has 216 divisors, whose sum is σ = 251477408. Its totient is φ = 18579456.

The previous prime is 70656767. The next prime is 70656769. The reversal of 70656768 is 86765607.

It is an interprime number because it is at equal distance from previous prime (70656767) and next prime (70656769).

It is not an unprimeable number, because it can be changed into a prime (70656767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209496 + ... + 209832.

Almost surely, 2^70656768 is an apocalyptic number.

70656768 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70656768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125738704).

70656768 is an abundant number, since it is smaller than the sum of its proper divisors (180820640).

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

70656768 is a wasteful number, since it uses less digits than its factorization.

70656768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 70656768 is about 8405.7580264959. The cubic root of 70656768 is about 413.4134380530.

The spelling of 70656768 in words is "seventy million, six hundred fifty-six thousand, seven hundred sixty-eight".