352611281921238 has 192 divisors, whose sum is σ = 861188086440000. Its totient is φ = 106796127449088.

The previous prime is 352611281921231. The next prime is 352611281921243. The reversal of 352611281921238 is 832129182116253.

352611281921238 is a `hidden beast` number, since 3 + 5 + 2 + 611 + 2 + 8 + 1 + 9 + 2 + 12 + 3 + 8 = 666.

It is a super-2 number, since 2×352611281921238² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352611281921231) 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, 4350553338 + ... + 4350634386.

It is an arithmetic number, because the mean of its divisors is an integer number (4485354616875).

Almost surely, 2^{352611281921238} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 352611281921238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430594043220000).

352611281921238 is an abundant number, since it is smaller than the sum of its proper divisors (508576804518762).

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

352611281921238 is a wasteful number, since it uses less digits than its factorization.

352611281921238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90736 (or 90713 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 352611281921238 in words is "three hundred fifty-two trillion, six hundred eleven billion, two hundred eighty-one million, nine hundred twenty-one thousand, two hundred thirty-eight".