70163734421 has 4 divisors (see below), whose sum is σ = 76542255744. Its totient is φ = 63785213100.

The previous prime is 70163734397. The next prime is 70163734447. The reversal of 70163734421 is 12443736107.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70163734421 - 2⁶ = 70163734357 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 (70163734471) 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, 3189260645 + ... + 3189260666.

It is an arithmetic number, because the mean of its divisors is an integer number (19135563936).

Almost surely, 2^70163734421 is an apocalyptic number.

It is an amenable number.

70163734421 is a deficient number, since it is larger than the sum of its proper divisors (6378521323).

70163734421 is a wasteful number, since it uses less digits than its factorization.

70163734421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378521322.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 70163734421 in words is "seventy billion, one hundred sixty-three million, seven hundred thirty-four thousand, four hundred twenty-one".