2825143485381 has 64 divisors (see below), whose sum is σ = 4838771520000. Its totient is φ = 1595662903296.

The previous prime is 2825143485343. The next prime is 2825143485397. The reversal of 2825143485381 is 1835843415282.

It is a happy number.

2825143485381 is a `hidden beast` number, since 2 + 8 + 2 + 51 + 434 + 85 + 3 + 81 = 666.

It is not a de Polignac number, because 2825143485381 - 2¹⁰ = 2825143484357 is a prime.

It is a super-2 number, since 2×2825143485381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2825143480381) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49913265 + ... + 49969833.

It is an arithmetic number, because the mean of its divisors is an integer number (75605805000).

Almost surely, 2^{2825143485381} is an apocalyptic number.

2825143485381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2825143485381 is a deficient number, since it is larger than the sum of its proper divisors (2013628034619).

2825143485381 is a wasteful number, since it uses less digits than its factorization.

2825143485381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59643 (or 59637 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The spelling of 2825143485381 in words is "two trillion, eight hundred twenty-five billion, one hundred forty-three million, four hundred eighty-five thousand, three hundred eighty-one".