5451951319 has 4 divisors (see below), whose sum is σ = 5493569400. Its totient is φ = 5410333240.

The previous prime is 5451951317. The next prime is 5451951331. The reversal of 5451951319 is 9131591545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5451951319 - 2¹ = 5451951317 is a prime.

It is a super-2 number, since 2×5451951319² = 59447546369491679522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451951317) 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, 20808844 + ... + 20809105.

It is an arithmetic number, because the mean of its divisors is an integer number (1373392350).

Almost surely, 2^5451951319 is an apocalyptic number.

5451951319 is a deficient number, since it is larger than the sum of its proper divisors (41618081).

5451951319 is a wasteful number, since it uses less digits than its factorization.

5451951319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41618080.

The product of its digits is 121500, while the sum is 43.

The square root of 5451951319 is about 73837.3301183080. The cubic root of 5451951319 is about 1760.0188659092.

The spelling of 5451951319 in words is "five billion, four hundred fifty-one million, nine hundred fifty-one thousand, three hundred nineteen".