2494891904485 has 4 divisors (see below), whose sum is σ = 2993870285388. Its totient is φ = 1995913523584.

The previous prime is 2494891904459. The next prime is 2494891904489. The reversal of 2494891904485 is 5844091984942.

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

It can be written as a sum of positive squares in 2 ways, for example, as 599580754276 + 1895311150209 = 774326^2 + 1376703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2494891904485 - 2³⁷ = 2357452951013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2494891904485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2494891904489) 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, 249489190444 + ... + 249489190453.

It is an arithmetic number, because the mean of its divisors is an integer number (748467571347).

Almost surely, 2^{2494891904485} is an apocalyptic number.

It is an amenable number.

2494891904485 is a deficient number, since it is larger than the sum of its proper divisors (498978380903).

2494891904485 is an equidigital number, since it uses as much as digits as its factorization.

2494891904485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498978380902.

The product of its (nonzero) digits is 119439360, while the sum is 67.

The spelling of 2494891904485 in words is "two trillion, four hundred ninety-four billion, eight hundred ninety-one million, nine hundred four thousand, four hundred eighty-five".