6451933973 has 2 divisors, whose sum is σ = 6451933974. Its totient is φ = 6451933972.

The previous prime is 6451933921. The next prime is 6451933981. The reversal of 6451933973 is 3793391546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4767488209 + 1684445764 = 69047^2 + 41042^2 .

It is a cyclic number.

It is not a de Polignac number, because 6451933973 - 2⁶ = 6451933909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6451933073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225966986 + 3225966987.

It is an arithmetic number, because the mean of its divisors is an integer number (3225966987).

Almost surely, 2^6451933973 is an apocalyptic number.

It is an amenable number.

6451933973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6451933973 is an equidigital number, since it uses as much as digits as its factorization.

6451933973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1837080, while the sum is 50.

The square root of 6451933973 is about 80323.9315086108. The cubic root of 6451933973 is about 1861.6440134739.

The spelling of 6451933973 in words is "six billion, four hundred fifty-one million, nine hundred thirty-three thousand, nine hundred seventy-three".