92147986561 has 4 divisors (see below), whose sum is σ = 93523329712. Its totient is φ = 90772643412.

The previous prime is 92147986507. The next prime is 92147986643. The reversal of 92147986561 is 16568974129.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 92147986561 - 2⁷ = 92147986433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 92147986496 and 92147986505.

It is not an unprimeable number, because it can be changed into a prime (92147986661) 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, 687671475 + ... + 687671608.

It is an arithmetic number, because the mean of its divisors is an integer number (23380832428).

Almost surely, 2^92147986561 is an apocalyptic number.

It is an amenable number.

92147986561 is a deficient number, since it is larger than the sum of its proper divisors (1375343151).

92147986561 is a wasteful number, since it uses less digits than its factorization.

92147986561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375343150.

The product of its digits is 6531840, while the sum is 58.

The spelling of 92147986561 in words is "ninety-two billion, one hundred forty-seven million, nine hundred eighty-six thousand, five hundred sixty-one".