64670251903 has 2 divisors, whose sum is σ = 64670251904. Its totient is φ = 64670251902.

The previous prime is 64670251889. The next prime is 64670251913. The reversal of 64670251903 is 30915207646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64670251903 - 2¹⁷ = 64670120831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64670251903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64670251913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32335125951 + 32335125952.

It is an arithmetic number, because the mean of its divisors is an integer number (32335125952).

Almost surely, 2^64670251903 is an apocalyptic number.

64670251903 is a deficient number, since it is larger than the sum of its proper divisors (1).

64670251903 is an equidigital number, since it uses as much as digits as its factorization.

64670251903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 64670251903 in words is "sixty-four billion, six hundred seventy million, two hundred fifty-one thousand, nine hundred three".