26520402030 has 32 divisors (see below), whose sum is σ = 63693484704. Its totient is φ = 7067160576.

The previous prime is 26520402017. The next prime is 26520402037. The reversal of 26520402030 is 3020402562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26520402037) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 265459 + ... + 351438.

It is an arithmetic number, because the mean of its divisors is an integer number (1990421397).

Almost surely, 2^26520402030 is an apocalyptic number.

26520402030 is an abundant number, since it is smaller than the sum of its proper divisors (37173082674).

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

26520402030 is a wasteful number, since it uses less digits than its factorization.

26520402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618340.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 26520402030 its reverse (3020402562), we get a palindrome (29540804592).

The spelling of 26520402030 in words is "twenty-six billion, five hundred twenty million, four hundred two thousand, thirty".