11837804685 has 32 divisors (see below), whose sum is σ = 21759639552. Its totient is φ = 5383225920.

The previous prime is 11837804681. The next prime is 11837804743. The reversal of 11837804685 is 58640873811.

It is a happy number.

It is not a de Polignac number, because 11837804685 - 2² = 11837804681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11837804681) 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, 275079 + ... + 315188.

It is an arithmetic number, because the mean of its divisors is an integer number (679988736).

Almost surely, 2^11837804685 is an apocalyptic number.

11837804685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11837804685 is a deficient number, since it is larger than the sum of its proper divisors (9921834867).

11837804685 is a wasteful number, since it uses less digits than its factorization.

11837804685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590473.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 11837804685 in words is "eleven billion, eight hundred thirty-seven million, eight hundred four thousand, six hundred eighty-five".