5151851623 has 2 divisors, whose sum is σ = 5151851624. Its totient is φ = 5151851622.

The previous prime is 5151851611. The next prime is 5151851633. The reversal of 5151851623 is 3261581515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5151851623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5151851603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2575925811 + 2575925812.

It is an arithmetic number, because the mean of its divisors is an integer number (2575925812).

Almost surely, 2^5151851623 is an apocalyptic number.

5151851623 is a deficient number, since it is larger than the sum of its proper divisors (1).

5151851623 is an equidigital number, since it uses as much as digits as its factorization.

5151851623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 37.

The square root of 5151851623 is about 71776.4001813967. The cubic root of 5151851623 is about 1727.1144411498.

The spelling of 5151851623 in words is "five billion, one hundred fifty-one million, eight hundred fifty-one thousand, six hundred twenty-three".