1970007775 has 6 divisors (see below), whose sum is σ = 2442809672. Its totient is φ = 1576006200.

The previous prime is 1970007763. The next prime is 1970007779. The reversal of 1970007775 is 5777000791.

It is a de Polignac number, because none of the positive numbers 2^k-1970007775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970007779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39400131 + ... + 39400180.

Almost surely, 2^1970007775 is an apocalyptic number.

1970007775 is a deficient number, since it is larger than the sum of its proper divisors (472801897).

1970007775 is an equidigital number, since it uses as much as digits as its factorization.

1970007775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78800321 (or 78800316 counting only the distinct ones).

The product of its (nonzero) digits is 108045, while the sum is 43.

The square root of 1970007775 is about 44384.7696287814. The cubic root of 1970007775 is about 1253.5913306604.

The spelling of 1970007775 in words is "one billion, nine hundred seventy million, seven thousand, seven hundred seventy-five".