38518621742 has 8 divisors (see below), whose sum is σ = 57778779600. Its totient is φ = 19259028544.

The previous prime is 38518621697. The next prime is 38518621849. The reversal of 38518621742 is 24712681583.

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

It is a super-2 number, since 2×38518621742² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147134 + ... + 314142.

It is an arithmetic number, because the mean of its divisors is an integer number (7222347450).

Almost surely, 2^38518621742 is an apocalyptic number.

38518621742 is a deficient number, since it is larger than the sum of its proper divisors (19260157858).

38518621742 is a wasteful number, since it uses less digits than its factorization.

38518621742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282330.

The product of its digits is 645120, while the sum is 47.

The spelling of 38518621742 in words is "thirty-eight billion, five hundred eighteen million, six hundred twenty-one thousand, seven hundred forty-two".