487088101691 has 4 divisors (see below), whose sum is σ = 492561001800. Its totient is φ = 481615201584.

The previous prime is 487088101681. The next prime is 487088101727. The reversal of 487088101691 is 196101880784.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487088101691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487088101631) 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, 2736449921 + ... + 2736450098.

It is an arithmetic number, because the mean of its divisors is an integer number (123140250450).

Almost surely, 2^487088101691 is an apocalyptic number.

487088101691 is a deficient number, since it is larger than the sum of its proper divisors (5472900109).

487088101691 is an equidigital number, since it uses as much as digits as its factorization.

487088101691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472900108.

The product of its (nonzero) digits is 774144, while the sum is 53.

The spelling of 487088101691 in words is "four hundred eighty-seven billion, eighty-eight million, one hundred one thousand, six hundred ninety-one".