6451131101971 has 8 divisors (see below), whose sum is σ = 6607196940080. Its totient is φ = 6295339788192.

The previous prime is 6451131101941. The next prime is 6451131101999. The reversal of 6451131101971 is 1791011311546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6451131101971 - 2¹⁷ = 6451130970899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6451131101941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68583516 + ... + 68677513.

It is an arithmetic number, because the mean of its divisors is an integer number (825899617510).

Almost surely, 2^{6451131101971} is an apocalyptic number.

6451131101971 is a deficient number, since it is larger than the sum of its proper divisors (156065838109).

6451131101971 is a wasteful number, since it uses less digits than its factorization.

6451131101971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137262165.

The product of its (nonzero) digits is 22680, while the sum is 40.

The spelling of 6451131101971 in words is "six trillion, four hundred fifty-one billion, one hundred thirty-one million, one hundred one thousand, nine hundred seventy-one".