2534391304638 has 64 divisors (see below), whose sum is σ = 5273248780800. Its totient is φ = 811435201920.

The previous prime is 2534391304637. The next prime is 2534391304639. The reversal of 2534391304638 is 8364031934352.

It is an interprime number because it is at equal distance from previous prime (2534391304637) and next prime (2534391304639).

It is a super-3 number, since 3×2534391304638³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2534391304631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6947868 + ... + 7303536.

It is an arithmetic number, because the mean of its divisors is an integer number (82394512200).

Almost surely, 2^{2534391304638} is an apocalyptic number.

2534391304638 is an abundant number, since it is smaller than the sum of its proper divisors (2738857476162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2534391304638 is a wasteful number, since it uses less digits than its factorization.

2534391304638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356177.

The product of its (nonzero) digits is 5598720, while the sum is 51.

The spelling of 2534391304638 in words is "two trillion, five hundred thirty-four billion, three hundred ninety-one million, three hundred four thousand, six hundred thirty-eight".