1975270779 has 10 divisors (see below), whose sum is σ = 2950713260. Its totient is φ = 1316847132.

The previous prime is 1975270777. The next prime is 1975270819. The reversal of 1975270779 is 9770725791.

It is not a de Polignac number, because 1975270779 - 2¹ = 1975270777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1975270771) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12192949 + ... + 12193110.

It is an arithmetic number, because the mean of its divisors is an integer number (295071326).

Almost surely, 2^1975270779 is an apocalyptic number.

1975270779 is a deficient number, since it is larger than the sum of its proper divisors (975442481).

1975270779 is an equidigital number, since it uses as much as digits as its factorization.

1975270779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24386071 (or 24386062 counting only the distinct ones).

The product of its (nonzero) digits is 1944810, while the sum is 54.

The square root of 1975270779 is about 44444.0184839310. The cubic root of 1975270779 is about 1254.7066882781.

The spelling of 1975270779 in words is "one billion, nine hundred seventy-five million, two hundred seventy thousand, seven hundred seventy-nine".