38457789517744 has 10 divisors (see below), whose sum is σ = 74511967190660. Its totient is φ = 19228894758864.

The previous prime is 38457789517699. The next prime is 38457789517747. The reversal of 38457789517744 is 44771598775483.

It is a super-2 number, since 2×38457789517744² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38457789517747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201805922414 + ... + 1201805922445.

It is an arithmetic number, because the mean of its divisors is an integer number (7451196719066).

Almost surely, 2^{38457789517744} is an apocalyptic number.

It is an amenable number.

38457789517744 is a deficient number, since it is larger than the sum of its proper divisors (36054177672916).

38457789517744 is a wasteful number, since it uses less digits than its factorization.

38457789517744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403611844867 (or 2403611844861 counting only the distinct ones).

The product of its digits is 6638284800, while the sum is 79.

The spelling of 38457789517744 in words is "thirty-eight trillion, four hundred fifty-seven billion, seven hundred eighty-nine million, five hundred seventeen thousand, seven hundred forty-four".