352720105731 has 12 divisors (see below), whose sum is σ = 582268111152. Its totient is φ = 201554346096.

The previous prime is 352720105697. The next prime is 352720105739. The reversal of 352720105731 is 137501027253.

It is a happy number.

352720105731 is a `hidden beast` number, since 3 + 5 + 2 + 72 + 0 + 10 + 573 + 1 = 666.

It is not a de Polignac number, because 352720105731 - 2⁷ = 352720105603 is a prime.

It is a super-2 number, since 2×352720105731² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (352720105739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2799365856 + ... + 2799365981.

It is an arithmetic number, because the mean of its divisors is an integer number (48522342596).

Almost surely, 2^352720105731 is an apocalyptic number.

352720105731 is a deficient number, since it is larger than the sum of its proper divisors (229548005421).

352720105731 is a wasteful number, since it uses less digits than its factorization.

352720105731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598731850 (or 5598731847 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The spelling of 352720105731 in words is "three hundred fifty-two billion, seven hundred twenty million, one hundred five thousand, seven hundred thirty-one".