70644688644607 has 64 divisors (see below), whose sum is σ = 93332735668224. Its totient is φ = 51767908093440.

The previous prime is 70644688644493. The next prime is 70644688644637.

70644688644607 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 70644688644607 - 2⁷ = 70644688644479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70644688644637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15618987048 + ... + 15618991570.

It is an arithmetic number, because the mean of its divisors is an integer number (1458323994816).

Almost surely, 2^{70644688644607} is an apocalyptic number.

70644688644607 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

70644688644607 is a deficient number, since it is larger than the sum of its proper divisors (22688047023617).

70644688644607 is a wasteful number, since it uses less digits than its factorization.

70644688644607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11548.

The product of its (nonzero) digits is 1040449536, while the sum is 70.

The spelling of 70644688644607 in words is "seventy trillion, six hundred forty-four billion, six hundred eighty-eight million, six hundred forty-four thousand, six hundred seven".