70205405621444 has 12 divisors (see below), whose sum is σ = 122859533216784. Its totient is φ = 35102681845224.

The previous prime is 70205405621381. The next prime is 70205405621447. The reversal of 70205405621444 is 44412650450207.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70205405621395 and 70205405621404.

It is not an unprimeable number, because it can be changed into a prime (70205405621447) 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, 4171127 + ... + 12562209.

It is an arithmetic number, because the mean of its divisors is an integer number (10238294434732).

Almost surely, 2^{70205405621444} is an apocalyptic number.

It is an amenable number.

70205405621444 is a deficient number, since it is larger than the sum of its proper divisors (52654127595340).

70205405621444 is a wasteful number, since it uses less digits than its factorization.

70205405621444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10482754 (or 10482752 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 44.

The spelling of 70205405621444 in words is "seventy trillion, two hundred five billion, four hundred five million, six hundred twenty-one thousand, four hundred forty-four".