18928536106 has 8 divisors (see below), whose sum is σ = 28396105380. Its totient is φ = 9463167648.

The previous prime is 18928536103. The next prime is 18928536139. The reversal of 18928536106 is 60163582981.

It can be written as a sum of positive squares in 2 ways, for example, as 17386795881 + 1541740225 = 131859^2 + 39265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18928536106² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18928536106.

It is not an unprimeable number, because it can be changed into a prime (18928536103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528531 + ... + 563206.

Almost surely, 2^18928536106 is an apocalyptic number.

18928536106 is a deficient number, since it is larger than the sum of its proper divisors (9467569274).

18928536106 is a wasteful number, since it uses less digits than its factorization.

18928536106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100408.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 18928536106 in words is "eighteen billion, nine hundred twenty-eight million, five hundred thirty-six thousand, one hundred six".