94187456641 has 4 divisors (see below), whose sum is σ = 94811214784. Its totient is φ = 93563698500.

The previous prime is 94187456617. The next prime is 94187456647. The reversal of 94187456641 is 14665478149.

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 94187456641 - 2⁵ = 94187456609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94187456647) 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, 311878845 + ... + 311879146.

It is an arithmetic number, because the mean of its divisors is an integer number (23702803696).

Almost surely, 2^94187456641 is an apocalyptic number.

It is an amenable number.

94187456641 is a deficient number, since it is larger than the sum of its proper divisors (623758143).

94187456641 is a wasteful number, since it uses less digits than its factorization.

94187456641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623758142.

The product of its digits is 5806080, while the sum is 55.

The spelling of 94187456641 in words is "ninety-four billion, one hundred eighty-seven million, four hundred fifty-six thousand, six hundred forty-one".