51077045699 has 2 divisors, whose sum is σ = 51077045700. Its totient is φ = 51077045698.

The previous prime is 51077045671. The next prime is 51077045741. The reversal of 51077045699 is 99654077015.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51077045699 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51077045699.

It is not a weakly prime, because it can be changed into another prime (51077045609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25538522849 + 25538522850.

It is an arithmetic number, because the mean of its divisors is an integer number (25538522850).

Almost surely, 2^51077045699 is an apocalyptic number.

51077045699 is a deficient number, since it is larger than the sum of its proper divisors (1).

51077045699 is an equidigital number, since it uses as much as digits as its factorization.

51077045699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 51077045699 in words is "fifty-one billion, seventy-seven million, forty-five thousand, six hundred ninety-nine".