6351890152681 has 4 divisors (see below), whose sum is σ = 6365491630992. Its totient is φ = 6338288674372.

The previous prime is 6351890152667. The next prime is 6351890152687. The reversal of 6351890152681 is 1862510981536.

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 6351890152681 - 2¹¹ = 6351890150633 is a prime.

It is a super-2 number, since 2×6351890152681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6351890152687) 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, 6800738455 + ... + 6800739388.

It is an arithmetic number, because the mean of its divisors is an integer number (1591372907748).

Almost surely, 2^{6351890152681} is an apocalyptic number.

It is an amenable number.

6351890152681 is a deficient number, since it is larger than the sum of its proper divisors (13601478311).

6351890152681 is a wasteful number, since it uses less digits than its factorization.

6351890152681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13601478310.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 6351890152681 in words is "six trillion, three hundred fifty-one billion, eight hundred ninety million, one hundred fifty-two thousand, six hundred eighty-one".