3450201781 has 8 divisors (see below), whose sum is σ = 3716589240. Its totient is φ = 3183955392.

The previous prime is 3450201763. The next prime is 3450201787. The reversal of 3450201781 is 1871020543.

It can be written as a sum of positive squares in 4 ways, for example, as 765407556 + 2684794225 = 27666^2 + 51815^2 .

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 3450201781 - 2¹⁵ = 3450169013 is a prime.

It is a super-2 number, since 2×3450201781² = 23807784659231143922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3450201787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18591 + ... + 85123.

It is an arithmetic number, because the mean of its divisors is an integer number (464573655).

Almost surely, 2^3450201781 is an apocalyptic number.

It is an amenable number.

3450201781 is a deficient number, since it is larger than the sum of its proper divisors (266387459).

3450201781 is a wasteful number, since it uses less digits than its factorization.

3450201781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70535.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 3450201781 is about 58738.4182711792. The cubic root of 3450201781 is about 1511.0592659606.

The spelling of 3450201781 in words is "three billion, four hundred fifty million, two hundred one thousand, seven hundred eighty-one".