70947702769 has 2 divisors, whose sum is σ = 70947702770. Its totient is φ = 70947702768.

The previous prime is 70947702739. The next prime is 70947702817. The reversal of 70947702769 is 96720774907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55037160000 + 15910542769 = 234600^2 + 126137^2 .

It is a cyclic number.

It is not a de Polignac number, because 70947702769 - 2¹⁷ = 70947571697 is a prime.

It is a super-2 number, since 2×70947702769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70947702739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35473851384 + 35473851385.

It is an arithmetic number, because the mean of its divisors is an integer number (35473851385).

Almost surely, 2^70947702769 is an apocalyptic number.

It is an amenable number.

70947702769 is a deficient number, since it is larger than the sum of its proper divisors (1).

70947702769 is an equidigital number, since it uses as much as digits as its factorization.

70947702769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9335088, while the sum is 58.

The spelling of 70947702769 in words is "seventy billion, nine hundred forty-seven million, seven hundred two thousand, seven hundred sixty-nine".