57634081639 has 16 divisors (see below), whose sum is σ = 59057748000. Its totient is φ = 56231870464.

The previous prime is 57634081627. The next prime is 57634081663. The reversal of 57634081639 is 93618043675.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57634081639 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 (57634087639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2435637 + ... + 2459185.

It is an arithmetic number, because the mean of its divisors is an integer number (3691109250).

Almost surely, 2^57634081639 is an apocalyptic number.

57634081639 is a deficient number, since it is larger than the sum of its proper divisors (1423666361).

57634081639 is a wasteful number, since it uses less digits than its factorization.

57634081639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24002.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 57634081639 in words is "fifty-seven billion, six hundred thirty-four million, eighty-one thousand, six hundred thirty-nine".