70641020242 has 16 divisors (see below), whose sum is σ = 115242247512. Its totient is φ = 32280739200.

The previous prime is 70641020239. The next prime is 70641020287. The reversal of 70641020242 is 24202014607.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49040545401 + 21600474841 = 221451^2 + 146971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70641020242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13447683 + ... + 13452934.

Almost surely, 2^70641020242 is an apocalyptic number.

70641020242 is a deficient number, since it is larger than the sum of its proper divisors (44601227270).

70641020242 is a wasteful number, since it uses less digits than its factorization.

70641020242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26900733.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 70641020242 its reverse (24202014607), we get a palindrome (94843034849).

The spelling of 70641020242 in words is "seventy billion, six hundred forty-one million, twenty thousand, two hundred forty-two".