1264683374534 has 4 divisors (see below), whose sum is σ = 1897025061804. Its totient is φ = 632341687266.

The previous prime is 1264683374531. The next prime is 1264683374599. The reversal of 1264683374534 is 4354733864621.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1264683374534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264683374531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316170843632 + ... + 316170843635.

It is an arithmetic number, because the mean of its divisors is an integer number (474256265451).

Almost surely, 2^{1264683374534} is an apocalyptic number.

1264683374534 is a deficient number, since it is larger than the sum of its proper divisors (632341687270).

1264683374534 is an equidigital number, since it uses as much as digits as its factorization.

1264683374534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632341687269.

The product of its digits is 34836480, while the sum is 56.

The spelling of 1264683374534 in words is "one trillion, two hundred sixty-four billion, six hundred eighty-three million, three hundred seventy-four thousand, five hundred thirty-four".