561264749060 has 24 divisors (see below), whose sum is σ = 1197978204696. Its totient is φ = 220825474560.

The previous prime is 561264749053. The next prime is 561264749093. The reversal of 561264749060 is 60947462165.

It can be written as a sum of positive squares in 4 ways, for example, as 57232906756 + 504031842304 = 239234^2 + 709952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230025317 + ... + 230027756.

It is an arithmetic number, because the mean of its divisors is an integer number (49915758529).

Almost surely, 2^561264749060 is an apocalyptic number.

It is an amenable number.

561264749060 is an abundant number, since it is smaller than the sum of its proper divisors (636713455636).

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

561264749060 is a wasteful number, since it uses less digits than its factorization.

561264749060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460053143 (or 460053141 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 561264749060 in words is "five hundred sixty-one billion, two hundred sixty-four million, seven hundred forty-nine thousand, sixty".