1087806325261 has 8 divisors (see below), whose sum is σ = 1117226096120. Its totient is φ = 1058387586048.

The previous prime is 1087806325259. The next prime is 1087806325267. The reversal of 1087806325261 is 1625236087801.

It is a happy number.

1087806325261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 290446622761 + 797359702500 = 538931^2 + 892950^2 .

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 1087806325261 - 2¹ = 1087806325259 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 (1087806325267) 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, 2189245 + ... + 2639773.

It is an arithmetic number, because the mean of its divisors is an integer number (139653262015).

Almost surely, 2^{1087806325261} is an apocalyptic number.

It is an amenable number.

1087806325261 is a deficient number, since it is larger than the sum of its proper divisors (29419770859).

1087806325261 is an equidigital number, since it uses as much as digits as its factorization.

1087806325261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515823.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 1087806325261 in words is "one trillion, eighty-seven billion, eight hundred six million, three hundred twenty-five thousand, two hundred sixty-one".