1274963989694 has 4 divisors (see below), whose sum is σ = 1912445984544. Its totient is φ = 637481994846.

The previous prime is 1274963989679. The next prime is 1274963989697. The reversal of 1274963989694 is 4969893694721.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274963989697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318740997422 + ... + 318740997425.

It is an arithmetic number, because the mean of its divisors is an integer number (478111496136).

Almost surely, 2^{1274963989694} is an apocalyptic number.

1274963989694 is a deficient number, since it is larger than the sum of its proper divisors (637481994850).

1274963989694 is an equidigital number, since it uses as much as digits as its factorization.

1274963989694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637481994849.

The product of its digits is 1269789696, while the sum is 77.

The spelling of 1274963989694 in words is "one trillion, two hundred seventy-four billion, nine hundred sixty-three million, nine hundred eighty-nine thousand, six hundred ninety-four".