64980518371 has 2 divisors, whose sum is σ = 64980518372. Its totient is φ = 64980518370.

The previous prime is 64980518279. The next prime is 64980518411. The reversal of 64980518371 is 17381508946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64980518371 - 2⁷ = 64980518243 is a prime.

It is not a weakly prime, because it can be changed into another prime (64980518971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32490259185 + 32490259186.

It is an arithmetic number, because the mean of its divisors is an integer number (32490259186).

Almost surely, 2^64980518371 is an apocalyptic number.

64980518371 is a deficient number, since it is larger than the sum of its proper divisors (1).

64980518371 is an equidigital number, since it uses as much as digits as its factorization.

64980518371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 64980518371 in words is "sixty-four billion, nine hundred eighty million, five hundred eighteen thousand, three hundred seventy-one".