638825741413 has 8 divisors (see below), whose sum is σ = 692134046208. Its totient is φ = 587265249984.

The previous prime is 638825741347. The next prime is 638825741429. The reversal of 638825741413 is 314147528836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-638825741413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638825741483) 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 7 ways as a sum of consecutive naturals, for example, 436952581 + ... + 436954042.

It is an arithmetic number, because the mean of its divisors is an integer number (86516755776).

Almost surely, 2^638825741413 is an apocalyptic number.

It is an amenable number.

638825741413 is a deficient number, since it is larger than the sum of its proper divisors (53308304795).

638825741413 is a wasteful number, since it uses less digits than its factorization.

638825741413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873906683.

The product of its digits is 3870720, while the sum is 52.

The spelling of 638825741413 in words is "six hundred thirty-eight billion, eight hundred twenty-five million, seven hundred forty-one thousand, four hundred thirteen".