70026143681 has 8 divisors (see below), whose sum is σ = 75848684520. Its totient is φ = 64265876352.

The previous prime is 70026143653. The next prime is 70026143717. The reversal of 70026143681 is 18634162007.

It can be written as a sum of positive squares in 4 ways, for example, as 37979773456 + 32046370225 = 194884^2 + 179015^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70026143681 - 2³⁴ = 52846274497 is a prime.

It is a super-2 number, since 2×70026143681² (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 (70026143881) 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, 15566036 + ... + 15570533.

It is an arithmetic number, because the mean of its divisors is an integer number (9481085565).

Almost surely, 2^70026143681 is an apocalyptic number.

It is an amenable number.

70026143681 is a deficient number, since it is larger than the sum of its proper divisors (5822540839).

70026143681 is a wasteful number, since it uses less digits than its factorization.

70026143681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31136755.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 70026143681 in words is "seventy billion, twenty-six million, one hundred forty-three thousand, six hundred eighty-one".