1264125127694 has 32 divisors (see below), whose sum is σ = 2227788251136. Its totient is φ = 530378529120.

The previous prime is 1264125127649. The next prime is 1264125127697. The reversal of 1264125127694 is 4967215214621.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264125127697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7306739 + ... + 7477745.

It is an arithmetic number, because the mean of its divisors is an integer number (69618382848).

Almost surely, 2^{1264125127694} is an apocalyptic number.

1264125127694 is a deficient number, since it is larger than the sum of its proper divisors (963663123442).

1264125127694 is a wasteful number, since it uses less digits than its factorization.

1264125127694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196880.

The product of its digits is 1451520, while the sum is 50.

The spelling of 1264125127694 in words is "one trillion, two hundred sixty-four billion, one hundred twenty-five million, one hundred twenty-seven thousand, six hundred ninety-four".