3151463361621 has 4 divisors (see below), whose sum is σ = 4201951148832. Its totient is φ = 2100975574412.

The previous prime is 3151463361569. The next prime is 3151463361643. The reversal of 3151463361621 is 1261633641513.

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 3151463361621 - 2¹⁴ = 3151463345237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151463361521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525243893601 + ... + 525243893606.

It is an arithmetic number, because the mean of its divisors is an integer number (1050487787208).

Almost surely, 2^{3151463361621} is an apocalyptic number.

It is an amenable number.

3151463361621 is a deficient number, since it is larger than the sum of its proper divisors (1050487787211).

3151463361621 is a wasteful number, since it uses less digits than its factorization.

3151463361621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050487787210.

The product of its digits is 233280, while the sum is 42.

The spelling of 3151463361621 in words is "three trillion, one hundred fifty-one billion, four hundred sixty-three million, three hundred sixty-one thousand, six hundred twenty-one".