38635538755540 has 24 divisors (see below), whose sum is σ = 81135757376352. Its totient is φ = 15454001028000.

The previous prime is 38635538755531. The next prime is 38635538755543. The reversal of 38635538755540 is 4555783553683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38635538755543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11923494 + ... + 14813533.

It is an arithmetic number, because the mean of its divisors is an integer number (3380656557348).

Almost surely, 2^{38635538755540} is an apocalyptic number.

It is an amenable number.

38635538755540 is an abundant number, since it is smaller than the sum of its proper divisors (42500218620812).

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

38635538755540 is a wasteful number, since it uses less digits than its factorization.

38635538755540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26809287 (or 26809285 counting only the distinct ones).

The product of its (nonzero) digits is 907200000, while the sum is 67.

The spelling of 38635538755540 in words is "thirty-eight trillion, six hundred thirty-five billion, five hundred thirty-eight million, seven hundred fifty-five thousand, five hundred forty".