61868124 has 60 divisors (see below), whose sum is σ = 162583344. Its totient is φ = 20514816.

The previous prime is 61868113. The next prime is 61868129. The reversal of 61868124 is 42186816.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61868129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82897 + ... + 83639.

Almost surely, 2^61868124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61868124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81291672).

61868124 is an abundant number, since it is smaller than the sum of its proper divisors (100715220).

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

61868124 is a wasteful number, since it uses less digits than its factorization.

61868124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1005 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 61868124 is about 7865.6292818820. The cubic root of 61868124 is about 395.5083429999.

It can be divided in two parts, 6186812 and 4, that added together give a palindrome (6186816).

The spelling of 61868124 in words is "sixty-one million, eight hundred sixty-eight thousand, one hundred twenty-four".