537681238601 has 8 divisors (see below), whose sum is σ = 613102589064. Its totient is φ = 467125781760.

The previous prime is 537681238597. The next prime is 537681238613. The reversal of 537681238601 is 106832186735.

It can be written as a sum of positive squares in 4 ways, for example, as 28029456400 + 509651782201 = 167420^2 + 713899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 537681238601 - 2² = 537681238597 is a prime.

It is a super-2 number, since 2×537681238601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 537681238601.

It is not an unprimeable number, because it can be changed into a prime (537681238631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216473170 + ... + 1216473611.

It is an arithmetic number, because the mean of its divisors is an integer number (76637823633).

Almost surely, 2^537681238601 is an apocalyptic number.

It is an amenable number.

537681238601 is a deficient number, since it is larger than the sum of its proper divisors (75421350463).

537681238601 is a wasteful number, since it uses less digits than its factorization.

537681238601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432946811.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 537681238601 in words is "five hundred thirty-seven billion, six hundred eighty-one million, two hundred thirty-eight thousand, six hundred one".