20357526838 has 16 divisors (see below), whose sum is σ = 33334863120. Its totient is φ = 9247158400.

The previous prime is 20357526821. The next prime is 20357526841. The reversal of 20357526838 is 83862575302.

It is a junction number, because it is equal to n+sod(n) for n = 20357526791 and 20357526800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279823 + ... + 344986.

It is an arithmetic number, because the mean of its divisors is an integer number (2083428945).

Almost surely, 2^20357526838 is an apocalyptic number.

20357526838 is a deficient number, since it is larger than the sum of its proper divisors (12977336282).

20357526838 is a wasteful number, since it uses less digits than its factorization.

20357526838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626303.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 20357526838 in words is "twenty billion, three hundred fifty-seven million, five hundred twenty-six thousand, eight hundred thirty-eight".