70538885501890 has 16 divisors (see below), whose sum is σ = 136736916511608. Its totient is φ = 26045126954496.

The previous prime is 70538885501879. The next prime is 70538885501891. The reversal of 70538885501890 is 9810558883507.

It can be written as a sum of positive squares in 4 ways, for example, as 60344294249281 + 10194591252609 = 7768159^2 + 3192897^2 .

It is not an unprimeable number, because it can be changed into a prime (70538885501891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271303405647 + ... + 271303405906.

Almost surely, 2^{70538885501890} is an apocalyptic number.

70538885501890 is a deficient number, since it is larger than the sum of its proper divisors (66198031009718).

70538885501890 is a wasteful number, since it uses less digits than its factorization.

70538885501890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542606811573.

The product of its (nonzero) digits is 96768000, while the sum is 67.

The spelling of 70538885501890 in words is "seventy trillion, five hundred thirty-eight billion, eight hundred eighty-five million, five hundred one thousand, eight hundred ninety".