137748941487 has 48 divisors (see below), whose sum is σ = 212122048320. Its totient is φ = 85837925376.

The previous prime is 137748941437. The next prime is 137748941497. The reversal of 137748941487 is 784149847731.

137748941487 is a `hidden beast` number, since 1 + 3 + 7 + 7 + 489 + 4 + 148 + 7 = 666.

It is not a de Polignac number, because 137748941487 - 2²⁰ = 137747892911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137748941417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49388689 + ... + 49391477.

It is an arithmetic number, because the mean of its divisors is an integer number (4419209340).

Almost surely, 2^137748941487 is an apocalyptic number.

137748941487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

137748941487 is a deficient number, since it is larger than the sum of its proper divisors (74373106833).

137748941487 is a wasteful number, since it uses less digits than its factorization.

137748941487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912 (or 4909 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The spelling of 137748941487 in words is "one hundred thirty-seven billion, seven hundred forty-eight million, nine hundred forty-one thousand, four hundred eighty-seven".