11837652840 has 768 divisors, whose sum is σ = 47551795200. Its totient is φ = 2521497600.

The previous prime is 11837652829. The next prime is 11837652887. The reversal of 11837652840 is 4825673811.

11837652840 is a `hidden beast` number, since 1 + 1 + 83 + 7 + 6 + 528 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 61977145 + ... + 61977335.

It is an arithmetic number, because the mean of its divisors is an integer number (61916400).

Almost surely, 2^11837652840 is an apocalyptic number.

11837652840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11837652840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23775897600).

11837652840 is an abundant number, since it is smaller than the sum of its proper divisors (35714142360).

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

11837652840 is a wasteful number, since it uses less digits than its factorization.

11837652840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 11837652840 in words is "eleven billion, eight hundred thirty-seven million, six hundred fifty-two thousand, eight hundred forty".