5191089591451 has 4 divisors (see below), whose sum is σ = 5191243485400. Its totient is φ = 5190935697504.

The previous prime is 5191089591439. The next prime is 5191089591487. The reversal of 5191089591451 is 1541959801915.

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 5191089591451 - 2¹⁷ = 5191089460379 is a prime.

It is a super-2 number, since 2×5191089591451² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5191083591451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76896366 + ... + 76963843.

It is an arithmetic number, because the mean of its divisors is an integer number (1297810871350).

Almost surely, 2^{5191089591451} is an apocalyptic number.

5191089591451 is a deficient number, since it is larger than the sum of its proper divisors (153893949).

5191089591451 is a wasteful number, since it uses less digits than its factorization.

5191089591451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153893948.

The product of its (nonzero) digits is 2916000, while the sum is 58.

The spelling of 5191089591451 in words is "five trillion, one hundred ninety-one billion, eighty-nine million, five hundred ninety-one thousand, four hundred fifty-one".