2534218531861 has 16 divisors (see below), whose sum is σ = 2621825680320. Its totient is φ = 2447622714240.

The previous prime is 2534218531829. The next prime is 2534218531921. The reversal of 2534218531861 is 1681358124352.

It is a cyclic number.

It is not a de Polignac number, because 2534218531861 - 2⁵ = 2534218531829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2534218537861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38441850 + ... + 38507716.

It is an arithmetic number, because the mean of its divisors is an integer number (163864105020).

Almost surely, 2^{2534218531861} is an apocalyptic number.

It is an amenable number.

2534218531861 is a deficient number, since it is larger than the sum of its proper divisors (87607148459).

2534218531861 is a wasteful number, since it uses less digits than its factorization.

2534218531861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73524.

The product of its digits is 1382400, while the sum is 49.

The spelling of 2534218531861 in words is "two trillion, five hundred thirty-four billion, two hundred eighteen million, five hundred thirty-one thousand, eight hundred sixty-one".