537169868508 has 288 divisors, whose sum is σ = 1587021348864. Its totient is φ = 138426672384.

The previous prime is 537169868471. The next prime is 537169868509. The reversal of 537169868508 is 805868961735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537169868509) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120791541 + ... + 120795987.

Almost surely, 2^537169868508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537169868508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793510674432).

537169868508 is an abundant number, since it is smaller than the sum of its proper divisors (1049851480356).

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

537169868508 is a wasteful number, since it uses less digits than its factorization.

537169868508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4666 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 66.

The spelling of 537169868508 in words is "five hundred thirty-seven billion, one hundred sixty-nine million, eight hundred sixty-eight thousand, five hundred eight".