89740387479 has 16 divisors (see below), whose sum is σ = 124134348800. Its totient is φ = 57606072480.

The previous prime is 89740387469. The next prime is 89740387481. The reversal of 89740387479 is 97478304798.

It is a happy number.

It is not a de Polignac number, because 89740387479 - 2⁸ = 89740387223 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 (89740387469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2405992 + ... + 2443005.

It is an arithmetic number, because the mean of its divisors is an integer number (7758396800).

Almost surely, 2^89740387479 is an apocalyptic number.

89740387479 is a deficient number, since it is larger than the sum of its proper divisors (34393961321).

89740387479 is a wasteful number, since it uses less digits than its factorization.

89740387479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849230.

The product of its (nonzero) digits is 85349376, while the sum is 66.

The spelling of 89740387479 in words is "eighty-nine billion, seven hundred forty million, three hundred eighty-seven thousand, four hundred seventy-nine".