70785382656 has 72 divisors (see below), whose sum is σ = 194888695680. Its totient is φ = 22781495296.

The previous prime is 70785382651. The next prime is 70785382667. The reversal of 70785382656 is 65628358707.

It is a super-2 number, since 2×70785382656² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70785382596 and 70785382605.

It is not an unprimeable number, because it can be changed into a prime (70785382651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566840 + ... + 1611383.

It is an arithmetic number, because the mean of its divisors is an integer number (2706787440).

Almost surely, 2^70785382656 is an apocalyptic number.

It is an amenable number.

70785382656 is an abundant number, since it is smaller than the sum of its proper divisors (124103313024).

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

70785382656 is a wasteful number, since it uses less digits than its factorization.

70785382656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178271 (or 3178257 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 70785382656 in words is "seventy billion, seven hundred eighty-five million, three hundred eighty-two thousand, six hundred fifty-six".