38492128538540 has 48 divisors (see below), whose sum is σ = 80918736181920. Its totient is φ = 15380612459520.

The previous prime is 38492128538503. The next prime is 38492128538561. The reversal of 38492128538540 is 4583582129483.

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, 312017270 + ... + 312140610.

It is an arithmetic number, because the mean of its divisors is an integer number (1685807003790).

Almost surely, 2^{38492128538540} is an apocalyptic number.

It is an amenable number.

38492128538540 is an abundant number, since it is smaller than the sum of its proper divisors (42426607643380).

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

38492128538540 is a wasteful number, since it uses less digits than its factorization.

38492128538540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139682 (or 139680 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 62.

The spelling of 38492128538540 in words is "thirty-eight trillion, four hundred ninety-two billion, one hundred twenty-eight million, five hundred thirty-eight thousand, five hundred forty".