30626289636 has 12 divisors (see below), whose sum is σ = 71461342512. Its totient is φ = 10208763208.

The previous prime is 30626289619. The next prime is 30626289709. The reversal of 30626289636 is 63698262603.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×30626289636² (a number of 22 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 3 ways as a sum of consecutive naturals, for example, 1276095390 + ... + 1276095413.

It is an arithmetic number, because the mean of its divisors is an integer number (5955111876).

Almost surely, 2^30626289636 is an apocalyptic number.

It is an amenable number.

30626289636 is an abundant number, since it is smaller than the sum of its proper divisors (40835052876).

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

30626289636 is a wasteful number, since it uses less digits than its factorization.

30626289636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552190810 (or 2552190808 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 51.

The spelling of 30626289636 in words is "thirty billion, six hundred twenty-six million, two hundred eighty-nine thousand, six hundred thirty-six".