1561067276492 has 12 divisors (see below), whose sum is σ = 2735236257096. Its totient is φ = 779571203040.

The previous prime is 1561067276491. The next prime is 1561067276557. The reversal of 1561067276492 is 2946727601651.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1561067276491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240605153 + ... + 240611640.

It is an arithmetic number, because the mean of its divisors is an integer number (227936354758).

Almost surely, 2^{1561067276492} is an apocalyptic number.

It is an amenable number.

1561067276492 is a deficient number, since it is larger than the sum of its proper divisors (1174168980604).

1561067276492 is a wasteful number, since it uses less digits than its factorization.

1561067276492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481217608 (or 481217606 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 1561067276492 in words is "one trillion, five hundred sixty-one billion, sixty-seven million, two hundred seventy-six thousand, four hundred ninety-two".