61883211720 has 64 divisors (see below), whose sum is σ = 202526879040. Its totient is φ = 15001990400.

The previous prime is 61883211703. The next prime is 61883211721. The reversal of 61883211720 is 2711238816.

It is not an unprimeable number, because it can be changed into a prime (61883211721) 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 15 ways as a sum of consecutive naturals, for example, 23439291 + ... + 23441930.

It is an arithmetic number, because the mean of its divisors is an integer number (3164482485).

Almost surely, 2^61883211720 is an apocalyptic number.

61883211720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61883211720 is an abundant number, since it is smaller than the sum of its proper divisors (140643667320).

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

61883211720 is a wasteful number, since it uses less digits than its factorization.

61883211720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46881246 (or 46881242 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 61883211720 in words is "sixty-one billion, eight hundred eighty-three million, two hundred eleven thousand, seven hundred twenty".