38520322849920 has 128 divisors (see below), whose sum is σ = 122787639037440. Its totient is φ = 10271742255104.

The previous prime is 38520322849919. The next prime is 38520322849949. The reversal of 38520322849920 is 2994822302583.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59846929 + ... + 60487151.

It is an arithmetic number, because the mean of its divisors is an integer number (959278429980).

Almost surely, 2^{38520322849920} is an apocalyptic number.

38520322849920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38520322849920 is an abundant number, since it is smaller than the sum of its proper divisors (84267316187520).

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

38520322849920 is a wasteful number, since it uses less digits than its factorization.

38520322849920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671582 (or 671570 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 38520322849920 in words is "thirty-eight trillion, five hundred twenty billion, three hundred twenty-two million, eight hundred forty-nine thousand, nine hundred twenty".