61804621060 has 48 divisors (see below), whose sum is σ = 159741179136. Its totient is φ = 19560143232.

The previous prime is 61804621057. The next prime is 61804621061. The reversal of 61804621060 is 6012640816.

It is a super-2 number, since 2×61804621060² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61804621061) 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 15 ways as a sum of consecutive naturals, for example, 16977472 + ... + 16981111.

It is an arithmetic number, because the mean of its divisors is an integer number (3327941232).

Almost surely, 2^61804621060 is an apocalyptic number.

It is an amenable number.

61804621060 is an abundant number, since it is smaller than the sum of its proper divisors (97936558076).

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

61804621060 is a wasteful number, since it uses less digits than its factorization.

61804621060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33958612 (or 33958610 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 61804621060 in words is "sixty-one billion, eight hundred four million, six hundred twenty-one thousand, sixty".