1487131993241 has 4 divisors (see below), whose sum is σ = 1501856072484. Its totient is φ = 1472407914000.

The previous prime is 1487131993229. The next prime is 1487131993253. The reversal of 1487131993241 is 1423991317841.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1487131993229) and next prime (1487131993253).

It can be written as a sum of positive squares in 2 ways, for example, as 632947536400 + 854184456841 = 795580^2 + 924221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487131993241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1487131983241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7362039470 + ... + 7362039671.

It is an arithmetic number, because the mean of its divisors is an integer number (375464018121).

Almost surely, 2^{1487131993241} is an apocalyptic number.

It is an amenable number.

1487131993241 is a deficient number, since it is larger than the sum of its proper divisors (14724079243).

1487131993241 is a wasteful number, since it uses less digits than its factorization.

1487131993241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14724079242.

The product of its digits is 1306368, while the sum is 53.

The spelling of 1487131993241 in words is "one trillion, four hundred eighty-seven billion, one hundred thirty-one million, nine hundred ninety-three thousand, two hundred forty-one".