70940223647 has 2 divisors, whose sum is σ = 70940223648. Its totient is φ = 70940223646.

The previous prime is 70940223583. The next prime is 70940223709. The reversal of 70940223647 is 74632204907.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70940223647 - 2⁶ = 70940223583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70940223598 and 70940223607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70940223947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35470111823 + 35470111824.

It is an arithmetic number, because the mean of its divisors is an integer number (35470111824).

Almost surely, 2^70940223647 is an apocalyptic number.

70940223647 is a deficient number, since it is larger than the sum of its proper divisors (1).

70940223647 is an equidigital number, since it uses as much as digits as its factorization.

70940223647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 70940223647 in words is "seventy billion, nine hundred forty million, two hundred twenty-three thousand, six hundred forty-seven".