11139400048 has 20 divisors (see below), whose sum is σ = 24665814640. Its totient is φ = 4774028544.

The previous prime is 11139399961. The next prime is 11139400049. The reversal of 11139400048 is 84000493111.

It is a junction number, because it is equal to n+sod(n) for n = 11139399992 and 11139400019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11139400049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49729353 + ... + 49729576.

It is an arithmetic number, because the mean of its divisors is an integer number (1233290732).

Almost surely, 2^11139400048 is an apocalyptic number.

It is an amenable number.

11139400048 is an abundant number, since it is smaller than the sum of its proper divisors (13526414592).

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

11139400048 is an equidigital number, since it uses as much as digits as its factorization.

11139400048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99458944 (or 99458938 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 11139400048 its reverse (84000493111), we get a palindrome (95139893159).

The spelling of 11139400048 in words is "eleven billion, one hundred thirty-nine million, four hundred thousand, forty-eight".