181628635130 has 32 divisors (see below), whose sum is σ = 337681128960. Its totient is φ = 70265482560.

The previous prime is 181628635057. The next prime is 181628635159. The reversal of 181628635130 is 31536826181.

It is a super-2 number, since 2×181628635130² (a number of 23 digits) contains 22 as substring.

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, 341036 + ... + 692504.

It is an arithmetic number, because the mean of its divisors is an integer number (10552535280).

Almost surely, 2^181628635130 is an apocalyptic number.

181628635130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181628635130 is a deficient number, since it is larger than the sum of its proper divisors (156052493830).

181628635130 is a wasteful number, since it uses less digits than its factorization.

181628635130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353174.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 181628635130 in words is "one hundred eighty-one billion, six hundred twenty-eight million, six hundred thirty-five thousand, one hundred thirty".