1861611452141 has 8 divisors (see below), whose sum is σ = 2127589497600. Its totient is φ = 1595641794768.

The previous prime is 1861611452131. The next prime is 1861611452149. The reversal of 1861611452141 is 1412541161681.

It is a happy number.

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

It is not a de Polignac number, because 1861611452141 - 2¹⁴ = 1861611435757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1861611452149) 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, 1614026 + ... + 2515611.

It is an arithmetic number, because the mean of its divisors is an integer number (265948687200).

Almost surely, 2^{1861611452141} is an apocalyptic number.

It is an amenable number.

1861611452141 is a deficient number, since it is larger than the sum of its proper divisors (265978045459).

1861611452141 is an equidigital number, since it uses as much as digits as its factorization.

1861611452141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194043.

The product of its digits is 46080, while the sum is 41.

The spelling of 1861611452141 in words is "one trillion, eight hundred sixty-one billion, six hundred eleven million, four hundred fifty-two thousand, one hundred forty-one".