70667681263 has 16 divisors (see below), whose sum is σ = 73964183040. Its totient is φ = 67390098336.

The previous prime is 70667681209. The next prime is 70667681341. The reversal of 70667681263 is 36218676607.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70667681263 is a prime.

It is a super-2 number, since 2×70667681263² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70667681263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70667681363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24907881 + ... + 24910717.

It is an arithmetic number, because the mean of its divisors is an integer number (4622761440).

Almost surely, 2^70667681263 is an apocalyptic number.

70667681263 is a deficient number, since it is larger than the sum of its proper divisors (3296501777).

70667681263 is a wasteful number, since it uses less digits than its factorization.

70667681263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 70667681263 in words is "seventy billion, six hundred sixty-seven million, six hundred eighty-one thousand, two hundred sixty-three".