11385517738 has 16 divisors (see below), whose sum is σ = 19537749504. Its totient is φ = 4874577840.

The previous prime is 11385517733. The next prime is 11385517807. The reversal of 11385517738 is 83771558311.

It is a junction number, because it is equal to n+sod(n) for n = 11385517691 and 11385517700.

It is not an unprimeable number, because it can be changed into a prime (11385517733) 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, 396445 + ... + 424192.

It is an arithmetic number, because the mean of its divisors is an integer number (1221109344).

Almost surely, 2^11385517738 is an apocalyptic number.

11385517738 is a deficient number, since it is larger than the sum of its proper divisors (8152231766).

11385517738 is an equidigital number, since it uses as much as digits as its factorization.

11385517738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821637.

The product of its digits is 705600, while the sum is 49.

The spelling of 11385517738 in words is "eleven billion, three hundred eighty-five million, five hundred seventeen thousand, seven hundred thirty-eight".