70700740081 has 4 divisors (see below), whose sum is σ = 72611570932. Its totient is φ = 68789909232.

The previous prime is 70700740079. The next prime is 70700740091. The reversal of 70700740081 is 18004700707.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68142403681 + 2558336400 = 261041^2 + 50580^2 .

It is not a de Polignac number, because 70700740081 - 2¹ = 70700740079 is a prime.

It is a super-2 number, since 2×70700740081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70700740021) 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, 955415370 + ... + 955415443.

It is an arithmetic number, because the mean of its divisors is an integer number (18152892733).

Almost surely, 2^70700740081 is an apocalyptic number.

It is an amenable number.

70700740081 is a deficient number, since it is larger than the sum of its proper divisors (1910830851).

70700740081 is a wasteful number, since it uses less digits than its factorization.

70700740081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910830850.

The product of its (nonzero) digits is 10976, while the sum is 34.

The spelling of 70700740081 in words is "seventy billion, seven hundred million, seven hundred forty thousand, eighty-one".