51355380379 has 2 divisors, whose sum is σ = 51355380380. Its totient is φ = 51355380378.

The previous prime is 51355380371. The next prime is 51355380437. The reversal of 51355380379 is 97308355315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51355380379 - 2³ = 51355380371 is a prime.

It is not a weakly prime, because it can be changed into another prime (51355380371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677690189 + 25677690190.

It is an arithmetic number, because the mean of its divisors is an integer number (25677690190).

Almost surely, 2^51355380379 is an apocalyptic number.

51355380379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51355380379 is an equidigital number, since it uses as much as digits as its factorization.

51355380379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701000, while the sum is 49.

The spelling of 51355380379 in words is "fifty-one billion, three hundred fifty-five million, three hundred eighty thousand, three hundred seventy-nine".