70678516648 has 8 divisors (see below), whose sum is σ = 132522218730. Its totient is φ = 35339258320.

The previous prime is 70678516637. The next prime is 70678516663. The reversal of 70678516648 is 84661587607.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63846171684 + 6832344964 = 252678^2 + 82658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×70678516648² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70678516592 and 70678516601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4417407283 + ... + 4417407298.

Almost surely, 2^70678516648 is an apocalyptic number.

It is an amenable number.

70678516648 is a deficient number, since it is larger than the sum of its proper divisors (61843702082).

70678516648 is a wasteful number, since it uses less digits than its factorization.

70678516648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8834814587 (or 8834814583 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 70678516648 in words is "seventy billion, six hundred seventy-eight million, five hundred sixteen thousand, six hundred forty-eight".