61533235400 has 96 divisors (see below), whose sum is σ = 176079771840. Its totient is φ = 19474248960.

The previous prime is 61533235369. The next prime is 61533235417. The reversal of 61533235400 is 453233516.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1672274 + ... + 1708673.

It is an arithmetic number, because the mean of its divisors is an integer number (1834164290).

Almost surely, 2^61533235400 is an apocalyptic number.

It is an amenable number.

61533235400 is an abundant number, since it is smaller than the sum of its proper divisors (114546536440).

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

61533235400 is a wasteful number, since it uses less digits than its factorization.

61533235400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380983 (or 3380974 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 61533235400 its reverse (453233516), we get a palindrome (61986468916).

The spelling of 61533235400 in words is "sixty-one billion, five hundred thirty-three million, two hundred thirty-five thousand, four hundred".