18890290302 has 32 divisors (see below), whose sum is σ = 40697849472. Its totient is φ = 5810815584.

The previous prime is 18890290253. The next prime is 18890290313. The reversal of 18890290302 is 20309209881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273753 + ... + 335739.

It is an arithmetic number, because the mean of its divisors is an integer number (1271807796).

Almost surely, 2^18890290302 is an apocalyptic number.

18890290302 is an abundant number, since it is smaller than the sum of its proper divisors (21807559170).

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

18890290302 is a wasteful number, since it uses less digits than its factorization.

18890290302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65912.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 18890290302 in words is "eighteen billion, eight hundred ninety million, two hundred ninety thousand, three hundred two".