51234349651 has 2 divisors, whose sum is σ = 51234349652. Its totient is φ = 51234349650.

The previous prime is 51234349601. The next prime is 51234349693. The reversal of 51234349651 is 15694343215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51234349651 - 2⁹ = 51234349139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51234349598 and 51234349607.

It is not a weakly prime, because it can be changed into another prime (51234349601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25617174825 + 25617174826.

It is an arithmetic number, because the mean of its divisors is an integer number (25617174826).

Almost surely, 2^51234349651 is an apocalyptic number.

51234349651 is a deficient number, since it is larger than the sum of its proper divisors (1).

51234349651 is an equidigital number, since it uses as much as digits as its factorization.

51234349651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The spelling of 51234349651 in words is "fifty-one billion, two hundred thirty-four million, three hundred forty-nine thousand, six hundred fifty-one".