2131878832148 has 48 divisors (see below), whose sum is σ = 4155894887424. Its totient is φ = 950248350720.

The previous prime is 2131878832099. The next prime is 2131878832151. The reversal of 2131878832148 is 8412388781312.

It is a junction number, because it is equal to n+sod(n) for n = 2131878832093 and 2131878832102.

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 15 ways as a sum of consecutive naturals, for example, 572765 + ... + 2142852.

It is an arithmetic number, because the mean of its divisors is an integer number (86581143488).

Almost surely, 2^{2131878832148} is an apocalyptic number.

It is an amenable number.

2131878832148 is a deficient number, since it is larger than the sum of its proper divisors (2024016055276).

2131878832148 is a wasteful number, since it uses less digits than its factorization.

2131878832148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716152 (or 2716150 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 56.

The spelling of 2131878832148 in words is "two trillion, one hundred thirty-one billion, eight hundred seventy-eight million, eight hundred thirty-two thousand, one hundred forty-eight".