1023647688804 has 36 divisors (see below), whose sum is σ = 2586376118256. Its totient is φ = 314968519008.

The previous prime is 1023647688781. The next prime is 1023647688871. The reversal of 1023647688804 is 4088867463201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252376594 + ... + 252380649.

Almost surely, 2^{1023647688804} is an apocalyptic number.

It is an amenable number.

1023647688804 is an abundant number, since it is smaller than the sum of its proper divisors (1562728429452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023647688804 is a wasteful number, since it uses less digits than its factorization.

1023647688804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504757276 (or 504757261 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 1023647688804 in words is "one trillion, twenty-three billion, six hundred forty-seven million, six hundred eighty-eight thousand, eight hundred four".