3447936452381 has 16 divisors (see below), whose sum is σ = 3681607755840. Its totient is φ = 3219545646720.

The previous prime is 3447936452329. The next prime is 3447936452407. The reversal of 3447936452381 is 1832546397443.

It is a de Polignac number, because none of the positive numbers 2^k-3447936452381 is a prime.

It is a super-2 number, since 2×3447936452381² (a number of 26 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 3447936452381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447936452281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218791 + ... + 2895051.

It is an arithmetic number, because the mean of its divisors is an integer number (230100484740).

Almost surely, 2^{3447936452381} is an apocalyptic number.

It is an amenable number.

3447936452381 is a deficient number, since it is larger than the sum of its proper divisors (233671303459).

3447936452381 is a wasteful number, since it uses less digits than its factorization.

3447936452381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677836.

The product of its digits is 52254720, while the sum is 59.

The spelling of 3447936452381 in words is "three trillion, four hundred forty-seven billion, nine hundred thirty-six million, four hundred fifty-two thousand, three hundred eighty-one".