61852668 has 12 divisors (see below), whose sum is σ = 144322920. Its totient is φ = 20617552.

The previous prime is 61852667. The next prime is 61852699. The reversal of 61852668 is 86625816.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61852663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577183 + ... + 2577206.

It is an arithmetic number, because the mean of its divisors is an integer number (12026910).

Almost surely, 2^61852668 is an apocalyptic number.

It is an amenable number.

61852668 is an abundant number, since it is smaller than the sum of its proper divisors (82470252).

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

61852668 is a wasteful number, since it uses less digits than its factorization.

61852668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154396 (or 5154394 counting only the distinct ones).

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

The square root of 61852668 is about 7864.6467180669. The cubic root of 61852668 is about 395.4754047345.

The spelling of 61852668 in words is "sixty-one million, eight hundred fifty-two thousand, six hundred sixty-eight".