561927936000 has 384 divisors, whose sum is σ = 1874553408000. Its totient is φ = 149454028800.

The previous prime is 561927935969. The next prime is 561927936061. The reversal of 561927936000 is 639729165.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401663301 + ... + 401664699.

It is an arithmetic number, because the mean of its divisors is an integer number (4881649500).

Almost surely, 2^561927936000 is an apocalyptic number.

561927936000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561927936000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937276704000).

561927936000 is an abundant number, since it is smaller than the sum of its proper divisors (1312625472000).

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

561927936000 is a wasteful number, since it uses less digits than its factorization.

561927936000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 561927936000 in words is "five hundred sixty-one billion, nine hundred twenty-seven million, nine hundred thirty-six thousand".