451113988973 has 2 divisors, whose sum is σ = 451113988974. Its totient is φ = 451113988972.

The previous prime is 451113988841. The next prime is 451113988981. The reversal of 451113988973 is 379889311154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415028427529 + 36085561444 = 644227^2 + 189962^2 .

It is a cyclic number.

It is not a de Polignac number, because 451113988973 - 2³⁶ = 382394512237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451113988993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225556994486 + 225556994487.

It is an arithmetic number, because the mean of its divisors is an integer number (225556994487).

Almost surely, 2^451113988973 is an apocalyptic number.

It is an amenable number.

451113988973 is a deficient number, since it is larger than the sum of its proper divisors (1).

451113988973 is an equidigital number, since it uses as much as digits as its factorization.

451113988973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The spelling of 451113988973 in words is "four hundred fifty-one billion, one hundred thirteen million, nine hundred eighty-eight thousand, nine hundred seventy-three".