1281420875074 has 16 divisors (see below), whose sum is σ = 1948372502400. Its totient is φ = 631979294544.

The previous prime is 1281420874999. The next prime is 1281420875087. The reversal of 1281420875074 is 4705780241821.

It is a happy 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, 3818517 + ... + 4140520.

It is an arithmetic number, because the mean of its divisors is an integer number (121773281400).

Almost surely, 2^{1281420875074} is an apocalyptic number.

1281420875074 is a deficient number, since it is larger than the sum of its proper divisors (666951627326).

1281420875074 is a wasteful number, since it uses less digits than its factorization.

1281420875074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960137.

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 1281420875074 in words is "one trillion, two hundred eighty-one billion, four hundred twenty million, eight hundred seventy-five thousand, seventy-four".