6011645838 has 64 divisors (see below), whose sum is σ = 13794803712. Its totient is φ = 1728730080.

The previous prime is 6011645837. The next prime is 6011645879. The reversal of 6011645838 is 8385461106.

It is a super-2 number, since 2×6011645838² = 72279771363085444488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6011645838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6011645837) 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, 177195 + ... + 208377.

It is an arithmetic number, because the mean of its divisors is an integer number (215543808).

Almost surely, 2^6011645838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6011645838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6897401856).

6011645838 is an abundant number, since it is smaller than the sum of its proper divisors (7783157874).

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

6011645838 is a wasteful number, since it uses less digits than its factorization.

6011645838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31349.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 6011645838 is about 77534.8040430876. The cubic root of 6011645838 is about 1818.2954936789.

The spelling of 6011645838 in words is "six billion, eleven million, six hundred forty-five thousand, eight hundred thirty-eight".