537656689650 has 96 divisors (see below), whose sum is σ = 1382351880960. Its totient is φ = 138131642880.

The previous prime is 537656689517. The next prime is 537656689741. The reversal of 537656689650 is 56986656735.

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, 1880574 + ... + 2147526.

It is an arithmetic number, because the mean of its divisors is an integer number (14399498760).

Almost surely, 2^537656689650 is an apocalyptic number.

537656689650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 537656689650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691175940480).

537656689650 is an abundant number, since it is smaller than the sum of its proper divisors (844695191310).

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

537656689650 is a wasteful number, since it uses less digits than its factorization.

537656689650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267460 (or 267455 counting only the distinct ones).

The product of its (nonzero) digits is 244944000, while the sum is 66.

The spelling of 537656689650 in words is "five hundred thirty-seven billion, six hundred fifty-six million, six hundred eighty-nine thousand, six hundred fifty".