1281540150877 has 16 divisors (see below), whose sum is σ = 1512878771200. Its totient is φ = 1062314507520.

The previous prime is 1281540150871. The next prime is 1281540150899. The reversal of 1281540150877 is 7780510451821.

It is a de Polignac number, because none of the positive numbers 2^k-1281540150877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1281540150877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281540150871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660002 + ... + 2306227.

It is an arithmetic number, because the mean of its divisors is an integer number (94554923200).

Almost surely, 2^{1281540150877} is an apocalyptic number.

It is an amenable number.

1281540150877 is a deficient number, since it is larger than the sum of its proper divisors (231338620323).

1281540150877 is a wasteful number, since it uses less digits than its factorization.

1281540150877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967756.

The product of its (nonzero) digits is 627200, while the sum is 49.

The spelling of 1281540150877 in words is "one trillion, two hundred eighty-one billion, five hundred forty million, one hundred fifty thousand, eight hundred seventy-seven".