38391249919652 has 24 divisors (see below), whose sum is σ = 76783413700224. Its totient is φ = 16453196995392.

The previous prime is 38391249919621. The next prime is 38391249919661. The reversal of 38391249919652 is 25691994219383.

It is a super-2 number, since 2×38391249919652² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5752448 + ... + 10482039.

It is an arithmetic number, because the mean of its divisors is an integer number (3199308904176).

Almost surely, 2^{38391249919652} is an apocalyptic number.

It is an amenable number.

38391249919652 is an abundant number, since it is smaller than the sum of its proper divisors (38392163780572).

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

38391249919652 is a wasteful number, since it uses less digits than its factorization.

38391249919652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16318955 (or 16318953 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 71.

The spelling of 38391249919652 in words is "thirty-eight trillion, three hundred ninety-one billion, two hundred forty-nine million, nine hundred nineteen thousand, six hundred fifty-two".