53412581687 has 2 divisors, whose sum is σ = 53412581688. Its totient is φ = 53412581686.

The previous prime is 53412581659. The next prime is 53412581737. The reversal of 53412581687 is 78618521435.

It is an a-pointer prime, because the next prime (53412581737) can be obtained adding 53412581687 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53412581687 - 2³² = 49117614391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53412581617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26706290843 + 26706290844.

It is an arithmetic number, because the mean of its divisors is an integer number (26706290844).

Almost surely, 2^53412581687 is an apocalyptic number.

53412581687 is a deficient number, since it is larger than the sum of its proper divisors (1).

53412581687 is an equidigital number, since it uses as much as digits as its factorization.

53412581687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 50.

The spelling of 53412581687 in words is "fifty-three billion, four hundred twelve million, five hundred eighty-one thousand, six hundred eighty-seven".