158436537487 has 2 divisors, whose sum is σ = 158436537488. Its totient is φ = 158436537486.

The previous prime is 158436537481. The next prime is 158436537499. The reversal of 158436537487 is 784735634851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158436537487 - 2⁷ = 158436537359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158436537481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79218268743 + 79218268744.

It is an arithmetic number, because the mean of its divisors is an integer number (79218268744).

Almost surely, 2^158436537487 is an apocalyptic number.

158436537487 is a deficient number, since it is larger than the sum of its proper divisors (1).

158436537487 is an equidigital number, since it uses as much as digits as its factorization.

158436537487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67737600, while the sum is 61.

The spelling of 158436537487 in words is "one hundred fifty-eight billion, four hundred thirty-six million, five hundred thirty-seven thousand, four hundred eighty-seven".