70641020243 has 4 divisors (see below), whose sum is σ = 71115121200. Its totient is φ = 70166919288.

The previous prime is 70641020239. The next prime is 70641020287. The reversal of 70641020243 is 34202014607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34202014607 = 401 ⋅85291807.

It is a cyclic number.

It is not a de Polignac number, because 70641020243 - 2² = 70641020239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70641020213) 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, 237050255 + ... + 237050552.

It is an arithmetic number, because the mean of its divisors is an integer number (17778780300).

Almost surely, 2^70641020243 is an apocalyptic number.

70641020243 is a deficient number, since it is larger than the sum of its proper divisors (474100957).

70641020243 is a wasteful number, since it uses less digits than its factorization.

70641020243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474100956.

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 70641020243 in words is "seventy billion, six hundred forty-one million, twenty thousand, two hundred forty-three".