38873421506 has 8 divisors (see below), whose sum is σ = 58312969740. Its totient is φ = 19435764928.

The previous prime is 38873421487. The next prime is 38873421523. The reversal of 38873421506 is 60512437883.

It can be written as a sum of positive squares in 2 ways, for example, as 37368369481 + 1505052025 = 193309^2 + 38795^2 .

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

It is a super-2 number, since 2×38873421506² (a number of 22 digits) contains 22 as substring.

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, 420371 + ... + 504438.

Almost surely, 2^38873421506 is an apocalyptic number.

38873421506 is a deficient number, since it is larger than the sum of its proper divisors (19439548234).

38873421506 is a wasteful number, since it uses less digits than its factorization.

38873421506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945828.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 38873421506 in words is "thirty-eight billion, eight hundred seventy-three million, four hundred twenty-one thousand, five hundred six".