2143505494825 has 48 divisors (see below), whose sum is σ = 2873772316800. Its totient is φ = 1580673830400.

The previous prime is 2143505494811. The next prime is 2143505494831. The reversal of 2143505494825 is 5284945053412.

It is not a de Polignac number, because 2143505494825 - 2²³ = 2143497106217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7116636 + ... + 7411714.

It is an arithmetic number, because the mean of its divisors is an integer number (59870256600).

Almost surely, 2^{2143505494825} is an apocalyptic number.

2143505494825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2143505494825 is a deficient number, since it is larger than the sum of its proper divisors (730266821975).

2143505494825 is a wasteful number, since it uses less digits than its factorization.

2143505494825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295522 (or 295517 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 2143505494825 in words is "two trillion, one hundred forty-three billion, five hundred five million, four hundred ninety-four thousand, eight hundred twenty-five".