5151426905 has 4 divisors (see below), whose sum is σ = 6181712292. Its totient is φ = 4121141520.

The previous prime is 5151426871. The next prime is 5151426913. The reversal of 5151426905 is 5096241515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5096241515 = 5 ⋅1019248303.

It can be written as a sum of positive squares in 2 ways, for example, as 1813822921 + 3337603984 = 42589^2 + 57772^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5151426905 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515142686 + ... + 515142695.

It is an arithmetic number, because the mean of its divisors is an integer number (1545428073).

Almost surely, 2^5151426905 is an apocalyptic number.

It is an amenable number.

5151426905 is a deficient number, since it is larger than the sum of its proper divisors (1030285387).

5151426905 is a wasteful number, since it uses less digits than its factorization.

5151426905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030285386.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 5151426905 is about 71773.4415017143. The cubic root of 5151426905 is about 1727.0669788130.

The spelling of 5151426905 in words is "five billion, one hundred fifty-one million, four hundred twenty-six thousand, nine hundred five".