11888906653 has 8 divisors (see below), whose sum is σ = 13115717496. Its totient is φ = 10706707200.

The previous prime is 11888906621. The next prime is 11888906663. The reversal of 11888906653 is 35660988811.

It can be written as a sum of positive squares in 4 ways, for example, as 25775929 + 11863130724 = 5077^2 + 108918^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11888906653 - 2⁵ = 11888906621 is a prime.

It is a super-2 number, since 2×11888906653² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11888906594 and 11888906603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11888906663) 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, 11152288 + ... + 11153353.

It is an arithmetic number, because the mean of its divisors is an integer number (1639464687).

Almost surely, 2^11888906653 is an apocalyptic number.

11888906653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11888906653 is a deficient number, since it is larger than the sum of its proper divisors (1226810843).

11888906653 is a wasteful number, since it uses less digits than its factorization.

11888906653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22305695.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 11888906653 in words is "eleven billion, eight hundred eighty-eight million, nine hundred six thousand, six hundred fifty-three".