687590882501 has 2 divisors, whose sum is σ = 687590882502. Its totient is φ = 687590882500.

The previous prime is 687590882401. The next prime is 687590882567. The reversal of 687590882501 is 105288095786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646337210401 + 41253672100 = 803951^2 + 203110^2 .

It is a cyclic number.

It is not a de Polignac number, because 687590882501 - 2³⁰ = 686517140677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687590882101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343795441250 + 343795441251.

It is an arithmetic number, because the mean of its divisors is an integer number (343795441251).

Almost surely, 2^687590882501 is an apocalyptic number.

It is an amenable number.

687590882501 is a deficient number, since it is larger than the sum of its proper divisors (1).

687590882501 is an equidigital number, since it uses as much as digits as its factorization.

687590882501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 59.

The spelling of 687590882501 in words is "six hundred eighty-seven billion, five hundred ninety million, eight hundred eighty-two thousand, five hundred one".