3151278463 has 4 divisors (see below), whose sum is σ = 3153170520. Its totient is φ = 3149386408.

The previous prime is 3151278443. The next prime is 3151278499. The reversal of 3151278463 is 3648721513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3648721513 = 197 ⋅18521429.

It is a cyclic number.

It is not a de Polignac number, because 3151278463 - 2⁹ = 3151277951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151278443) 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, 943528 + ... + 946861.

It is an arithmetic number, because the mean of its divisors is an integer number (788292630).

Almost surely, 2^3151278463 is an apocalyptic number.

3151278463 is a deficient number, since it is larger than the sum of its proper divisors (1892057).

3151278463 is a wasteful number, since it uses less digits than its factorization.

3151278463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892056.

The product of its digits is 120960, while the sum is 40.

The square root of 3151278463 is about 56136.2490998463. The cubic root of 3151278463 is about 1466.0954990221.

Adding to 3151278463 its reverse (3648721513), we get a palindrome (6799999976).

The spelling of 3151278463 in words is "three billion, one hundred fifty-one million, two hundred seventy-eight thousand, four hundred sixty-three".