70072023647 has 2 divisors, whose sum is σ = 70072023648. Its totient is φ = 70072023646.

The previous prime is 70072023599. The next prime is 70072023673. The reversal of 70072023647 is 74632027007.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70072023647 - 2⁸ = 70072023391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70072023647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70072023247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35036011823 + 35036011824.

It is an arithmetic number, because the mean of its divisors is an integer number (35036011824).

Almost surely, 2^70072023647 is an apocalyptic number.

70072023647 is a deficient number, since it is larger than the sum of its proper divisors (1).

70072023647 is an equidigital number, since it uses as much as digits as its factorization.

70072023647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 38.

The spelling of 70072023647 in words is "seventy billion, seventy-two million, twenty-three thousand, six hundred forty-seven".