158436587487 has 8 divisors (see below), whose sum is σ = 218533224240. Its totient is φ = 101982171200.

The previous prime is 158436587461. The next prime is 158436587501. The reversal of 158436587487 is 784785634851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158436587487 - 2⁶ = 158436587423 is a prime.

It is a super-3 number, since 3×158436587487³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158436537487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910555014 + ... + 910555187.

It is an arithmetic number, because the mean of its divisors is an integer number (27316653030).

Almost surely, 2^158436587487 is an apocalyptic number.

158436587487 is a deficient number, since it is larger than the sum of its proper divisors (60096636753).

158436587487 is a wasteful number, since it uses less digits than its factorization.

158436587487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821110233.

The product of its digits is 180633600, while the sum is 66.

The spelling of 158436587487 in words is "one hundred fifty-eight billion, four hundred thirty-six million, five hundred eighty-seven thousand, four hundred eighty-seven".