51342554420977 has 2 divisors, whose sum is σ = 51342554420978. Its totient is φ = 51342554420976.

The previous prime is 51342554420957. The next prime is 51342554420981. The reversal of 51342554420977 is 77902445524315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45236708478976 + 6105845942001 = 6725824^2 + 2471001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51342554420977 is a prime.

It is not a weakly prime, because it can be changed into another prime (51342554420947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671277210488 + 25671277210489.

It is an arithmetic number, because the mean of its divisors is an integer number (25671277210489).

Almost surely, 2^{51342554420977} is an apocalyptic number.

It is an amenable number.

51342554420977 is a deficient number, since it is larger than the sum of its proper divisors (1).

51342554420977 is an equidigital number, since it uses as much as digits as its factorization.

51342554420977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336000, while the sum is 58.

The spelling of 51342554420977 in words is "fifty-one trillion, three hundred forty-two billion, five hundred fifty-four million, four hundred twenty thousand, nine hundred seventy-seven".