561862528028 has 48 divisors (see below), whose sum is σ = 1028108004000. Its totient is φ = 268333648128.

The previous prime is 561862528001. The next prime is 561862528033. The reversal of 561862528028 is 820825268165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8095538 + ... + 8164646.

It is an arithmetic number, because the mean of its divisors is an integer number (21418916750).

Almost surely, 2^561862528028 is an apocalyptic number.

561862528028 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

561862528028 is a deficient number, since it is larger than the sum of its proper divisors (466245475972).

561862528028 is a wasteful number, since it uses less digits than its factorization.

561862528028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69894 (or 69892 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 561862528028 in words is "five hundred sixty-one billion, eight hundred sixty-two million, five hundred twenty-eight thousand, twenty-eight".