38035721424020 has 24 divisors (see below), whose sum is σ = 80223814192200. Its totient is φ = 15147850626432.

The previous prime is 38035721423939. The next prime is 38035721424049. The reversal of 38035721424020 is 2042412753083.

It can be written as a sum of positive squares in 4 ways, for example, as 8538352826116 + 29497368597904 = 2922046^2 + 5431148^2 .

It is a super-2 number, since 2×38035721424020² (a number of 28 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 7 ways as a sum of consecutive naturals, for example, 4152366755 + ... + 4152375914.

It is an arithmetic number, because the mean of its divisors is an integer number (3342658924675).

Almost surely, 2^{38035721424020} is an apocalyptic number.

It is an amenable number.

38035721424020 is an abundant number, since it is smaller than the sum of its proper divisors (42188092768180).

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

38035721424020 is a wasteful number, since it uses less digits than its factorization.

38035721424020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8304742907 (or 8304742905 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 38035721424020 in words is "thirty-eight trillion, thirty-five billion, seven hundred twenty-one million, four hundred twenty-four thousand, twenty".