1836148621351 has 4 divisors (see below), whose sum is σ = 2003071223304. Its totient is φ = 1669226019400.

The previous prime is 1836148621283. The next prime is 1836148621357. The reversal of 1836148621351 is 1531268416381.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1836148621351 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1836148621295 and 1836148621304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1836148621357) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83461300960 + ... + 83461300981.

It is an arithmetic number, because the mean of its divisors is an integer number (500767805826).

Almost surely, 2^{1836148621351} is an apocalyptic number.

1836148621351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1836148621351 is a deficient number, since it is larger than the sum of its proper divisors (166922601953).

1836148621351 is a wasteful number, since it uses less digits than its factorization.

1836148621351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166922601952.

The product of its digits is 829440, while the sum is 49.

The spelling of 1836148621351 in words is "one trillion, eight hundred thirty-six billion, one hundred forty-eight million, six hundred twenty-one thousand, three hundred fifty-one".