3407144806781 has 4 divisors (see below), whose sum is σ = 3410350024032. Its totient is φ = 3403939589532.

The previous prime is 3407144806711. The next prime is 3407144806787. The reversal of 3407144806781 is 1876084417043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3407144806781 - 2¹⁸ = 3407144544637 is a prime.

It is a super-2 number, since 2×3407144806781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3407144806787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602607031 + ... + 1602609156.

It is an arithmetic number, because the mean of its divisors is an integer number (852587506008).

Almost surely, 2^{3407144806781} is an apocalyptic number.

It is an amenable number.

3407144806781 is a deficient number, since it is larger than the sum of its proper divisors (3205217251).

3407144806781 is a wasteful number, since it uses less digits than its factorization.

3407144806781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205217250.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 3407144806781 in words is "three trillion, four hundred seven billion, one hundred forty-four million, eight hundred six thousand, seven hundred eighty-one".