18962906690 has 64 divisors (see below), whose sum is σ = 42987200256. Its totient is φ = 5861866752.

The previous prime is 18962906659. The next prime is 18962906723. The reversal of 18962906690 is 9660926981.

It is a super-2 number, since 2×18962906690² (a number of 21 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 203177 + ... + 281436.

It is an arithmetic number, because the mean of its divisors is an integer number (671675004).

Almost surely, 2^18962906690 is an apocalyptic number.

18962906690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18962906690 is an abundant number, since it is smaller than the sum of its proper divisors (24024293566).

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

18962906690 is a wasteful number, since it uses less digits than its factorization.

18962906690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484683.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The spelling of 18962906690 in words is "eighteen billion, nine hundred sixty-two million, nine hundred six thousand, six hundred ninety".