18973205082 has 24 divisors (see below), whose sum is σ = 44270812404. Its totient is φ = 5837909184.

The previous prime is 18973205071. The next prime is 18973205093. The reversal of 18973205082 is 28050237981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18973205071) and next prime (18973205093).

It can be written as a sum of positive squares in 2 ways, for example, as 14917935321 + 4055269761 = 122139^2 + 63681^2 .

It is a super-2 number, since 2×18973205082² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40540803 + ... + 40541270.

Almost surely, 2^18973205082 is an apocalyptic number.

18973205082 is an abundant number, since it is smaller than the sum of its proper divisors (25297607322).

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

18973205082 is a wasteful number, since it uses less digits than its factorization.

18973205082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81082094 (or 81082091 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 18973205082 in words is "eighteen billion, nine hundred seventy-three million, two hundred five thousand, eighty-two".