1281060173742 has 32 divisors (see below), whose sum is σ = 2567907256320. Its totient is φ = 426056130240.

The previous prime is 1281060173693. The next prime is 1281060173807. The reversal of 1281060173742 is 2473710601821.

It is a super-2 number, since 2×1281060173742² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1281060173694 and 1281060173703.

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, 9369523 + ... + 9505265.

It is an arithmetic number, because the mean of its divisors is an integer number (80247101760).

Almost surely, 2^{1281060173742} is an apocalyptic number.

1281060173742 is an abundant number, since it is smaller than the sum of its proper divisors (1286847082578).

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

1281060173742 is a wasteful number, since it uses less digits than its factorization.

1281060173742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139288.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 1281060173742 in words is "one trillion, two hundred eighty-one billion, sixty million, one hundred seventy-three thousand, seven hundred forty-two".