1279057613128 has 16 divisors (see below), whose sum is σ = 2398293937260. Its totient is φ = 639512563200.

The previous prime is 1279057613111. The next prime is 1279057613129. The reversal of 1279057613128 is 8213167509721.

It can be written as a sum of positive squares in 2 ways, for example, as 1227482294724 + 51575318404 = 1107918^2 + 227102^2 .

It is not an unprimeable number, because it can be changed into a prime (1279057613129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692453 + ... + 2328628.

Almost surely, 2^{1279057613128} is an apocalyptic number.

It is an amenable number.

1279057613128 is a deficient number, since it is larger than the sum of its proper divisors (1119236324132).

1279057613128 is a wasteful number, since it uses less digits than its factorization.

1279057613128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060848 (or 4060844 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 1279057613128 in words is "one trillion, two hundred seventy-nine billion, fifty-seven million, six hundred thirteen thousand, one hundred twenty-eight".