2861084149521 has 48 divisors (see below), whose sum is σ = 4144465123200. Its totient is φ = 1754848682496.

The previous prime is 2861084149519. The next prime is 2861084149543. The reversal of 2861084149521 is 1259414801682.

It is a happy number.

It is not a de Polignac number, because 2861084149521 - 2¹ = 2861084149519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2861084149321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270188695 + ... + 270199283.

It is an arithmetic number, because the mean of its divisors is an integer number (86343023400).

Almost surely, 2^{2861084149521} is an apocalyptic number.

It is an amenable number.

2861084149521 is a deficient number, since it is larger than the sum of its proper divisors (1283380973679).

2861084149521 is a wasteful number, since it uses less digits than its factorization.

2861084149521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12330 (or 12317 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 2861084149521 in words is "two trillion, eight hundred sixty-one billion, eighty-four million, one hundred forty-nine thousand, five hundred twenty-one".