61541301852 has 48 divisors (see below), whose sum is σ = 159725395200. Its totient is φ = 20491412400.

The previous prime is 61541301841. The next prime is 61541301869. The reversal of 61541301852 is 25810314516.

61541301852 is a `hidden beast` number, since 6 + 1 + 541 + 30 + 1 + 85 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

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, 210774 + ... + 409277.

It is an arithmetic number, because the mean of its divisors is an integer number (3327612400).

Almost surely, 2^61541301852 is an apocalyptic number.

It is an amenable number.

61541301852 is an abundant number, since it is smaller than the sum of its proper divisors (98184093348).

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

61541301852 is a wasteful number, since it uses less digits than its factorization.

61541301852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620983 (or 620975 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 61541301852 in words is "sixty-one billion, five hundred forty-one million, three hundred one thousand, eight hundred fifty-two".