2538194697 has 40 divisors (see below), whose sum is σ = 3856790784. Its totient is φ = 1663263072.

The previous prime is 2538194677. The next prime is 2538194699. The reversal of 2538194697 is 7964918352.

2538194697 is a `hidden beast` number, since 2 + 538 + 19 + 4 + 6 + 97 = 666.

It is not a de Polignac number, because 2538194697 - 2¹⁹ = 2537670409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2538194699) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1498383 + ... + 1500075.

Almost surely, 2^2538194697 is an apocalyptic number.

2538194697 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2538194697 is a deficient number, since it is larger than the sum of its proper divisors (1318596087).

2538194697 is a wasteful number, since it uses less digits than its factorization.

2538194697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2002 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 2538194697 is about 50380.4991737875. The cubic root of 2538194697 is about 1364.0856622772.

The spelling of 2538194697 in words is "two billion, five hundred thirty-eight million, one hundred ninety-four thousand, six hundred ninety-seven".