18954620630 has 16 divisors (see below), whose sum is σ = 37219982544. Its totient is φ = 6892589280.

The previous prime is 18954620569. The next prime is 18954620669. The reversal of 18954620630 is 3602645981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86157257 + ... + 86157476.

It is an arithmetic number, because the mean of its divisors is an integer number (2326248909).

Almost surely, 2^18954620630 is an apocalyptic number.

18954620630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18954620630 is a deficient number, since it is larger than the sum of its proper divisors (18265361914).

18954620630 is a wasteful number, since it uses less digits than its factorization.

18954620630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172314751.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 18954620630 in words is "eighteen billion, nine hundred fifty-four million, six hundred twenty thousand, six hundred thirty".