61465840182 has 48 divisors (see below), whose sum is σ = 138989062368. Its totient is φ = 19594586880.

The previous prime is 61465840181. The next prime is 61465840193. The reversal of 61465840182 is 28104856416.

It is a happy number.

61465840182 is a `hidden beast` number, since 6 + 1 + 465 + 8 + 4 + 0 + 182 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61465840181) 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 23 ways as a sum of consecutive naturals, for example, 4942332 + ... + 4954752.

It is an arithmetic number, because the mean of its divisors is an integer number (2895605466).

Almost surely, 2^61465840182 is an apocalyptic number.

61465840182 is an abundant number, since it is smaller than the sum of its proper divisors (77523222186).

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

61465840182 is a wasteful number, since it uses less digits than its factorization.

61465840182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24405 (or 24402 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 61465840182 in words is "sixty-one billion, four hundred sixty-five million, eight hundred forty thousand, one hundred eighty-two".