94581632819 has 4 divisors (see below), whose sum is σ = 94747275480. Its totient is φ = 94415990160.

The previous prime is 94581632771. The next prime is 94581632867. The reversal of 94581632819 is 91823618549.

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 (94581632771) and next prime (94581632867).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94581632819 is a prime.

It is a super-2 number, since 2×94581632819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94581632219) 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, 82820474 + ... + 82821615.

It is an arithmetic number, because the mean of its divisors is an integer number (23686818870).

Almost surely, 2^94581632819 is an apocalyptic number.

94581632819 is a deficient number, since it is larger than the sum of its proper divisors (165642661).

94581632819 is a wasteful number, since it uses less digits than its factorization.

94581632819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165642660.

The product of its digits is 3732480, while the sum is 56.

The spelling of 94581632819 in words is "ninety-four billion, five hundred eighty-one million, six hundred thirty-two thousand, eight hundred nineteen".