70442263406 has 8 divisors (see below), whose sum is σ = 106598469744. Its totient is φ = 34909440160.

The previous prime is 70442263403. The next prime is 70442263499. The reversal of 70442263406 is 60436224407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×70442263406² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70442263406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70442263403) 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, 155845490 + ... + 155845941.

It is an arithmetic number, because the mean of its divisors is an integer number (13324808718).

Almost surely, 2^70442263406 is an apocalyptic number.

70442263406 is a deficient number, since it is larger than the sum of its proper divisors (36156206338).

70442263406 is a wasteful number, since it uses less digits than its factorization.

70442263406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311691546.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 70442263406 in words is "seventy billion, four hundred forty-two million, two hundred sixty-three thousand, four hundred six".