20347401526 has 16 divisors (see below), whose sum is σ = 31336794720. Its totient is φ = 9902934720.

The previous prime is 20347401509. The next prime is 20347401533. The reversal of 20347401526 is 62510474302.

It is a junction number, because it is equal to n+sod(n) for n = 20347401491 and 20347401500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246621 + ... + 318616.

It is an arithmetic number, because the mean of its divisors is an integer number (1958549670).

Almost surely, 2^20347401526 is an apocalyptic number.

20347401526 is a deficient number, since it is larger than the sum of its proper divisors (10989393194).

20347401526 is a wasteful number, since it uses less digits than its factorization.

20347401526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565719.

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 20347401526 its reverse (62510474302), we get a palindrome (82857875828).

The spelling of 20347401526 in words is "twenty billion, three hundred forty-seven million, four hundred one thousand, five hundred twenty-six".