2541199906851 has 4 divisors (see below), whose sum is σ = 3388266542472. Its totient is φ = 1694133271232.

The previous prime is 2541199906849. The next prime is 2541199906877. The reversal of 2541199906851 is 1586099911452.

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

It is a cyclic number.

It is not a de Polignac number, because 2541199906851 - 2¹ = 2541199906849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2541199906811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423533317806 + ... + 423533317811.

It is an arithmetic number, because the mean of its divisors is an integer number (847066635618).

Almost surely, 2^{2541199906851} is an apocalyptic number.

2541199906851 is a deficient number, since it is larger than the sum of its proper divisors (847066635621).

2541199906851 is an equidigital number, since it uses as much as digits as its factorization.

2541199906851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847066635620.

The product of its (nonzero) digits is 6998400, while the sum is 60.

The spelling of 2541199906851 in words is "two trillion, five hundred forty-one billion, one hundred ninety-nine million, nine hundred six thousand, eight hundred fifty-one".