2087435440721 has 8 divisors (see below), whose sum is σ = 2116995713280. Its totient is φ = 2057980178992.

The previous prime is 2087435440681. The next prime is 2087435440723. The reversal of 2087435440721 is 1270445347802.

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 2087435440721 - 2¹⁴ = 2087435424337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2087435440723) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26212670 + ... + 26292183.

It is an arithmetic number, because the mean of its divisors is an integer number (264624464160).

Almost surely, 2^{2087435440721} is an apocalyptic number.

It is an amenable number.

2087435440721 is a deficient number, since it is larger than the sum of its proper divisors (29560272559).

2087435440721 is an equidigital number, since it uses as much as digits as its factorization.

2087435440721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52505415.

The product of its (nonzero) digits is 1505280, while the sum is 47.

The spelling of 2087435440721 in words is "two trillion, eighty-seven billion, four hundred thirty-five million, four hundred forty thousand, seven hundred twenty-one".