137861948871 has 72 divisors (see below), whose sum is σ = 216360144000. Its totient is φ = 84491637120.

The previous prime is 137861948843. The next prime is 137861948927. The reversal of 137861948871 is 178849168731.

137861948871 is a `hidden beast` number, since 1 + 3 + 7 + 8 + 619 + 4 + 8 + 8 + 7 + 1 = 666.

It is not a de Polignac number, because 137861948871 - 2⁹ = 137861948359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137861948799 and 137861948808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137861948771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21987925 + ... + 21994193.

It is an arithmetic number, because the mean of its divisors is an integer number (3005002000).

Almost surely, 2^137861948871 is an apocalyptic number.

137861948871 is a deficient number, since it is larger than the sum of its proper divisors (78498195129).

137861948871 is a wasteful number, since it uses less digits than its factorization.

137861948871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501 (or 6475 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 63.

The spelling of 137861948871 in words is "one hundred thirty-seven billion, eight hundred sixty-one million, nine hundred forty-eight thousand, eight hundred seventy-one".