5451681379 has 2 divisors, whose sum is σ = 5451681380. Its totient is φ = 5451681378.

The previous prime is 5451681371. The next prime is 5451681407. The reversal of 5451681379 is 9731861545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5451681379 - 2³ = 5451681371 is a prime.

It is not a weakly prime, because it can be changed into another prime (5451681371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725840689 + 2725840690.

It is an arithmetic number, because the mean of its divisors is an integer number (2725840690).

Almost surely, 2^5451681379 is an apocalyptic number.

5451681379 is a deficient number, since it is larger than the sum of its proper divisors (1).

5451681379 is an equidigital number, since it uses as much as digits as its factorization.

5451681379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 49.

The square root of 5451681379 is about 73835.5021585145. The cubic root of 5451681379 is about 1759.9898177570.

The spelling of 5451681379 in words is "five billion, four hundred fifty-one million, six hundred eighty-one thousand, three hundred seventy-nine".