2540641194506 has 8 divisors (see below), whose sum is σ = 3899588810304. Its totient is φ = 1240778257740.

The previous prime is 2540641194451. The next prime is 2540641194521. The reversal of 2540641194506 is 6054911460452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14771169650 + ... + 14771169821.

It is an arithmetic number, because the mean of its divisors is an integer number (487448601288).

Almost surely, 2^{2540641194506} is an apocalyptic number.

2540641194506 is a deficient number, since it is larger than the sum of its proper divisors (1358947615798).

2540641194506 is a wasteful number, since it uses less digits than its factorization.

2540641194506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29542339516.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 2540641194506 in words is "two trillion, five hundred forty billion, six hundred forty-one million, one hundred ninety-four thousand, five hundred six".