1264140644246 has 16 divisors (see below), whose sum is σ = 1960357014240. Its totient is φ = 610914571200.

The previous prime is 1264140644237. The next prime is 1264140644267. The reversal of 1264140644246 is 6424460414621.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1264140644197 and 1264140644206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56554991 + ... + 56577338.

It is an arithmetic number, because the mean of its divisors is an integer number (122522313390).

Almost surely, 2^{1264140644246} is an apocalyptic number.

1264140644246 is a deficient number, since it is larger than the sum of its proper divisors (696216369994).

1264140644246 is a wasteful number, since it uses less digits than its factorization.

1264140644246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113132519.

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 1264140644246 in words is "one trillion, two hundred sixty-four billion, one hundred forty million, six hundred forty-four thousand, two hundred forty-six".