51087300619 has 2 divisors, whose sum is σ = 51087300620. Its totient is φ = 51087300618.

The previous prime is 51087300577. The next prime is 51087300629. The reversal of 51087300619 is 91600378015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51087300619 - 2⁹ = 51087300107 is a prime.

It is a super-2 number, since 2×51087300619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51087300629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25543650309 + 25543650310.

It is an arithmetic number, because the mean of its divisors is an integer number (25543650310).

Almost surely, 2^51087300619 is an apocalyptic number.

51087300619 is a deficient number, since it is larger than the sum of its proper divisors (1).

51087300619 is an equidigital number, since it uses as much as digits as its factorization.

51087300619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 51087300619 in words is "fifty-one billion, eighty-seven million, three hundred thousand, six hundred nineteen".