64880370407 has 2 divisors, whose sum is σ = 64880370408. Its totient is φ = 64880370406.

The previous prime is 64880370391. The next prime is 64880370469. The reversal of 64880370407 is 70407308846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64880370407 - 2⁴ = 64880370391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64880370007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32440185203 + 32440185204.

It is an arithmetic number, because the mean of its divisors is an integer number (32440185204).

Almost surely, 2^64880370407 is an apocalyptic number.

64880370407 is a deficient number, since it is larger than the sum of its proper divisors (1).

64880370407 is an equidigital number, since it uses as much as digits as its factorization.

64880370407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 64880370407 in words is "sixty-four billion, eight hundred eighty million, three hundred seventy thousand, four hundred seven".