61312532300 has 18 divisors (see below), whose sum is σ = 133048195308. Its totient is φ = 24525012880.

The previous prime is 61312532257. The next prime is 61312532311. The reversal of 61312532300 is 323521316.

It is a self number, because there is not a number n which added to its sum of digits gives 61312532300.

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 5 ways as a sum of consecutive naturals, for example, 306562562 + ... + 306562761.

It is an arithmetic number, because the mean of its divisors is an integer number (7391566406).

Almost surely, 2^61312532300 is an apocalyptic number.

It is an amenable number.

61312532300 is an abundant number, since it is smaller than the sum of its proper divisors (71735663008).

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

61312532300 is a wasteful number, since it uses less digits than its factorization.

61312532300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613125337 (or 613125330 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The spelling of 61312532300 in words is "sixty-one billion, three hundred twelve million, five hundred thirty-two thousand, three hundred".