1561026280054 has 8 divisors (see below), whose sum is σ = 2341575922680. Its totient is φ = 780500972496.

The previous prime is 1561026280013. The next prime is 1561026280087. The reversal of 1561026280054 is 4500826201651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1561026279989 and 1561026280016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5922544 + ... + 6180499.

It is an arithmetic number, because the mean of its divisors is an integer number (292696990335).

Almost surely, 2^{1561026280054} is an apocalyptic number.

1561026280054 is a deficient number, since it is larger than the sum of its proper divisors (780549642626).

1561026280054 is a wasteful number, since it uses less digits than its factorization.

1561026280054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12167534.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 1561026280054 in words is "one trillion, five hundred sixty-one billion, twenty-six million, two hundred eighty thousand, fifty-four".