1025802381791 has 8 divisors (see below), whose sum is σ = 1119176596944. Its totient is φ = 932448075520.

The previous prime is 1025802381761. The next prime is 1025802381847. The reversal of 1025802381791 is 1971832085201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025802381791 - 2²⁶ = 1025735272927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025802381701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4869380 + ... + 5075673.

It is an arithmetic number, because the mean of its divisors is an integer number (139897074618).

Almost surely, 2^{1025802381791} is an apocalyptic number.

1025802381791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1025802381791 is a deficient number, since it is larger than the sum of its proper divisors (93374215153).

1025802381791 is an equidigital number, since it uses as much as digits as its factorization.

1025802381791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954441.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 1025802381791 in words is "one trillion, twenty-five billion, eight hundred two million, three hundred eighty-one thousand, seven hundred ninety-one".