1961552522285 has 8 divisors (see below), whose sum is σ = 2357740893696. Its totient is φ = 1566656773200.

The previous prime is 1961552522269. The next prime is 1961552522291. The reversal of 1961552522285 is 5822252551691.

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

It is not a de Polignac number, because 1961552522285 - 2⁴ = 1961552522269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323152241 + ... + 323158310.

It is an arithmetic number, because the mean of its divisors is an integer number (294717611712).

Almost surely, 2^{1961552522285} is an apocalyptic number.

It is an amenable number.

1961552522285 is a deficient number, since it is larger than the sum of its proper divisors (396188371411).

1961552522285 is an equidigital number, since it uses as much as digits as its factorization.

1961552522285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646311163.

The product of its digits is 4320000, while the sum is 53.

The spelling of 1961552522285 in words is "one trillion, nine hundred sixty-one billion, five hundred fifty-two million, five hundred twenty-two thousand, two hundred eighty-five".