91584349039 has 8 divisors (see below), whose sum is σ = 93149885088. Its totient is φ = 90026469120.

The previous prime is 91584349027. The next prime is 91584349057. The reversal of 91584349039 is 93094348519.

It is a happy number.

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 91584349039 - 2¹⁹ = 91583824751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91584349079) 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, 1889902 + ... + 1937755.

It is an arithmetic number, because the mean of its divisors is an integer number (11643735636).

Almost surely, 2^91584349039 is an apocalyptic number.

91584349039 is a deficient number, since it is larger than the sum of its proper divisors (1565536049).

91584349039 is a wasteful number, since it uses less digits than its factorization.

91584349039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828065.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 91584349039 in words is "ninety-one billion, five hundred eighty-four million, three hundred forty-nine thousand, thirty-nine".