11125697638 has 16 divisors (see below), whose sum is σ = 18207544320. Its totient is φ = 5056619400.

The previous prime is 11125697633. The next prime is 11125697659. The reversal of 11125697638 is 83679652111.

It is a super-2 number, since 2×11125697638² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11125697591 and 11125697600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11125697633) 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, 270283 + ... + 308713.

It is an arithmetic number, because the mean of its divisors is an integer number (1137971520).

Almost surely, 2^11125697638 is an apocalyptic number.

11125697638 is a deficient number, since it is larger than the sum of its proper divisors (7081846682).

11125697638 is a wasteful number, since it uses less digits than its factorization.

11125697638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51603.

The product of its digits is 544320, while the sum is 49.

The spelling of 11125697638 in words is "eleven billion, one hundred twenty-five million, six hundred ninety-seven thousand, six hundred thirty-eight".