131464895887 has 4 divisors (see below), whose sum is σ = 141577580200. Its totient is φ = 121352211576.

The previous prime is 131464895879. The next prime is 131464895899. The reversal of 131464895887 is 788598464131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788598464131 = 2243 ⋅351582017.

It is a cyclic number.

It is not a de Polignac number, because 131464895887 - 2³ = 131464895879 is a prime.

It is a super-5 number, since 5×131464895887⁵ (a number of 57 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131464895587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5056342137 + ... + 5056342162.

It is an arithmetic number, because the mean of its divisors is an integer number (35394395050).

Almost surely, 2^131464895887 is an apocalyptic number.

131464895887 is a deficient number, since it is larger than the sum of its proper divisors (10112684313).

131464895887 is a wasteful number, since it uses less digits than its factorization.

131464895887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112684312.

The product of its digits is 46448640, while the sum is 64.

The spelling of 131464895887 in words is "one hundred thirty-one billion, four hundred sixty-four million, eight hundred ninety-five thousand, eight hundred eighty-seven".