1264643856614 has 32 divisors (see below), whose sum is σ = 1933796229120. Its totient is φ = 620134745472.

The previous prime is 1264643856599. The next prime is 1264643856629. The reversal of 1264643856614 is 4166583464621.

It is an interprime number because it is at equal distance from previous prime (1264643856599) and next prime (1264643856629).

It is a self number, because there is not a number n which added to its sum of digits gives 1264643856614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27769787 + ... + 27815289.

It is an arithmetic number, because the mean of its divisors is an integer number (60431132160).

Almost surely, 2^{1264643856614} is an apocalyptic number.

1264643856614 is a deficient number, since it is larger than the sum of its proper divisors (669152372506).

1264643856614 is a wasteful number, since it uses less digits than its factorization.

1264643856614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46484.

The product of its digits is 19906560, while the sum is 56.

The spelling of 1264643856614 in words is "one trillion, two hundred sixty-four billion, six hundred forty-three million, eight hundred fifty-six thousand, six hundred fourteen".