86732881561 has 8 divisors (see below), whose sum is σ = 87112584000. Its totient is φ = 86353603920.

The previous prime is 86732881541. The next prime is 86732881577. The reversal of 86732881561 is 16518823768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86732881561 - 2³³ = 78142946969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86732881541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306540 + ... + 517138.

It is an arithmetic number, because the mean of its divisors is an integer number (10889073000).

Almost surely, 2^86732881561 is an apocalyptic number.

It is an amenable number.

86732881561 is a deficient number, since it is larger than the sum of its proper divisors (379702439).

86732881561 is a wasteful number, since it uses less digits than its factorization.

86732881561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212399.

The product of its digits is 3870720, while the sum is 55.

The spelling of 86732881561 in words is "eighty-six billion, seven hundred thirty-two million, eight hundred eighty-one thousand, five hundred sixty-one".