1081761767252 has 6 divisors (see below), whose sum is σ = 1893083092698. Its totient is φ = 540880883624.

The previous prime is 1081761767237. The next prime is 1081761767279. The reversal of 1081761767252 is 2527671671801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 733701886096 + 348059881156 = 856564^2 + 589966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1081761767194 and 1081761767203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135220220903 + ... + 135220220910.

It is an arithmetic number, because the mean of its divisors is an integer number (315513848783).

Almost surely, 2^{1081761767252} is an apocalyptic number.

It is an amenable number.

1081761767252 is a deficient number, since it is larger than the sum of its proper divisors (811321325446).

1081761767252 is a wasteful number, since it uses less digits than its factorization.

1081761767252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270440441817 (or 270440441815 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 53.

The spelling of 1081761767252 in words is "one trillion, eighty-one billion, seven hundred sixty-one million, seven hundred sixty-seven thousand, two hundred fifty-two".