99423581082 has 64 divisors (see below), whose sum is σ = 244213263360. Its totient is φ = 26336699136.

The previous prime is 99423581071. The next prime is 99423581087. The reversal of 99423581082 is 28018532499.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (99423581087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 991332 + ... + 1087007.

It is an arithmetic number, because the mean of its divisors is an integer number (3815832240).

Almost surely, 2^99423581082 is an apocalyptic number.

99423581082 is an abundant number, since it is smaller than the sum of its proper divisors (144789682278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99423581082 is a wasteful number, since it uses less digits than its factorization.

99423581082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078435.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 99423581082 in words is "ninety-nine billion, four hundred twenty-three million, five hundred eighty-one thousand, eighty-two".