1138293537528 has 128 divisors (see below), whose sum is σ = 3494974348800. Its totient is φ = 301527097344.

The previous prime is 1138293537523. The next prime is 1138293537551. The reversal of 1138293537528 is 8257353928311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138293537523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2782993 + ... + 3165696.

It is an arithmetic number, because the mean of its divisors is an integer number (27304487100).

Almost surely, 2^{1138293537528} is an apocalyptic number.

It is an amenable number.

1138293537528 is an abundant number, since it is smaller than the sum of its proper divisors (2356680811272).

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

1138293537528 is a wasteful number, since it uses less digits than its factorization.

1138293537528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948789 (or 5948785 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The spelling of 1138293537528 in words is "one trillion, one hundred thirty-eight billion, two hundred ninety-three million, five hundred thirty-seven thousand, five hundred twenty-eight".