70144647734123 has 4 divisors (see below), whose sum is σ = 70148159727648. Its totient is φ = 70141135740600.

The previous prime is 70144647734093. The next prime is 70144647734141. The reversal of 70144647734123 is 32143774644107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70144647734123 - 2²⁸ = 70144379298667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70144647704123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755966803 + ... + 1756006748.

It is an arithmetic number, because the mean of its divisors is an integer number (17537039931912).

Almost surely, 2^{70144647734123} is an apocalyptic number.

70144647734123 is a deficient number, since it is larger than the sum of its proper divisors (3511993525).

70144647734123 is a wasteful number, since it uses less digits than its factorization.

70144647734123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511993524.

The product of its (nonzero) digits is 9483264, while the sum is 53.

The spelling of 70144647734123 in words is "seventy trillion, one hundred forty-four billion, six hundred forty-seven million, seven hundred thirty-four thousand, one hundred twenty-three".