537639220026 has 96 divisors (see below), whose sum is σ = 1320782561280. Its totient is φ = 157160282400.

The previous prime is 537639219979. The next prime is 537639220033. The reversal of 537639220026 is 620022936735.

537639220026 is a `hidden beast` number, since 5 + 3 + 7 + 639 + 2 + 2 + 0 + 0 + 2 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 858570 + ... + 1346261.

It is an arithmetic number, because the mean of its divisors is an integer number (13758151680).

Almost surely, 2^537639220026 is an apocalyptic number.

537639220026 is an abundant number, since it is smaller than the sum of its proper divisors (783143341254).

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

537639220026 is a wasteful number, since it uses less digits than its factorization.

537639220026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204912 (or 2204909 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 537639220026 in words is "five hundred thirty-seven billion, six hundred thirty-nine million, two hundred twenty thousand, twenty-six".