300135421638 has 48 divisors (see below), whose sum is σ = 707249861136. Its totient is φ = 91435003200.

The previous prime is 300135421633. The next prime is 300135421639. The reversal of 300135421638 is 836124531003.

300135421638 is a `hidden beast` number, since 3 + 0 + 0 + 13 + 5 + 4 + 2 + 1 + 638 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300135421631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6326020 + ... + 6373287.

It is an arithmetic number, because the mean of its divisors is an integer number (14734372107).

Almost surely, 2^300135421638 is an apocalyptic number.

300135421638 is an abundant number, since it is smaller than the sum of its proper divisors (407114439498).

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

300135421638 is a wasteful number, since it uses less digits than its factorization.

300135421638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12699429 (or 12699426 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 300135421638 in words is "three hundred billion, one hundred thirty-five million, four hundred twenty-one thousand, six hundred thirty-eight".