1261084568 has 32 divisors (see below), whose sum is σ = 2492434800. Its totient is φ = 596527488.

The previous prime is 1261084553. The next prime is 1261084577. The reversal of 1261084568 is 8654801621.

It is a congruent number.

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, 112130 + ... + 122862.

Almost surely, 2^1261084568 is an apocalyptic number.

It is an amenable number.

1261084568 is a deficient number, since it is larger than the sum of its proper divisors (1231350232).

1261084568 is a wasteful number, since it uses less digits than its factorization.

1261084568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531 (or 11527 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1261084568 is about 35511.7525334923. The cubic root of 1261084568 is about 1080.3921095650.

The spelling of 1261084568 in words is "one billion, two hundred sixty-one million, eighty-four thousand, five hundred sixty-eight".