20626392834 has 48 divisors (see below), whose sum is σ = 46001000448. Its totient is φ = 6676157376.

The previous prime is 20626392821. The next prime is 20626392863. The reversal of 20626392834 is 43829362602.

It is a happy number.

20626392834 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 639 + 2 + 8 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20626392834.

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 23 ways as a sum of consecutive naturals, for example, 11454 + ... + 203430.

It is an arithmetic number, because the mean of its divisors is an integer number (958354176).

Almost surely, 2^20626392834 is an apocalyptic number.

20626392834 is an abundant number, since it is smaller than the sum of its proper divisors (25374607614).

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

20626392834 is a wasteful number, since it uses less digits than its factorization.

20626392834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192159 (or 192156 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 20626392834 in words is "twenty billion, six hundred twenty-six million, three hundred ninety-two thousand, eight hundred thirty-four".