4687938397913 has 2 divisors, whose sum is σ = 4687938397914. Its totient is φ = 4687938397912.

The previous prime is 4687938397819. The next prime is 4687938397937. The reversal of 4687938397913 is 3197938397864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3747333254809 + 940605143104 = 1935803^2 + 969848^2 .

It is a cyclic number.

It is not a de Polignac number, because 4687938397913 - 2²² = 4687934203609 is a prime.

It is not a weakly prime, because it can be changed into another prime (4687938397993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343969198956 + 2343969198957.

It is an arithmetic number, because the mean of its divisors is an integer number (2343969198957).

Almost surely, 2^{4687938397913} is an apocalyptic number.

It is an amenable number.

4687938397913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4687938397913 is an equidigital number, since it uses as much as digits as its factorization.

4687938397913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481421312, while the sum is 77.

The spelling of 4687938397913 in words is "four trillion, six hundred eighty-seven billion, nine hundred thirty-eight million, three hundred ninety-seven thousand, nine hundred thirteen".