61401832184 has 256 divisors, whose sum is σ = 152395776000. Its totient is φ = 22967280000.

The previous prime is 61401832181. The next prime is 61401832187. The reversal of 61401832184 is 48123810416.

It is an interprime number because it is at equal distance from previous prime (61401832181) and next prime (61401832187).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61401832181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197433389 + ... + 197433699.

It is an arithmetic number, because the mean of its divisors is an integer number (595296000).

Almost surely, 2^61401832184 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 61401832184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76197888000).

61401832184 is an abundant number, since it is smaller than the sum of its proper divisors (90993943816).

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

61401832184 is a wasteful number, since it uses less digits than its factorization.

61401832184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 61401832184 in words is "sixty-one billion, four hundred one million, eight hundred thirty-two thousand, one hundred eighty-four".