1296171123537 has 16 divisors (see below), whose sum is σ = 1785777766400. Its totient is φ = 835395541200.

The previous prime is 1296171123503. The next prime is 1296171123557. The reversal of 1296171123537 is 7353211716921.

It is not a de Polignac number, because 1296171123537 - 2¹¹ = 1296171121489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1296171123557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6939787 + ... + 7124112.

It is an arithmetic number, because the mean of its divisors is an integer number (111611110400).

Almost surely, 2^{1296171123537} is an apocalyptic number.

It is an amenable number.

1296171123537 is a deficient number, since it is larger than the sum of its proper divisors (489606642863).

1296171123537 is a wasteful number, since it uses less digits than its factorization.

1296171123537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14064924.

The product of its digits is 476280, while the sum is 48.

The spelling of 1296171123537 in words is "one trillion, two hundred ninety-six billion, one hundred seventy-one million, one hundred twenty-three thousand, five hundred thirty-seven".