137487381855 has 32 divisors (see below), whose sum is σ = 220629878784. Its totient is φ = 73110228096.

The previous prime is 137487381841. The next prime is 137487381893. The reversal of 137487381855 is 558183784731.

It is a happy number.

It is not a de Polignac number, because 137487381855 - 2¹³ = 137487373663 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7568914 + ... + 7587056.

It is an arithmetic number, because the mean of its divisors is an integer number (6894683712).

Almost surely, 2^137487381855 is an apocalyptic number.

137487381855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

137487381855 is a deficient number, since it is larger than the sum of its proper divisors (83142496929).

137487381855 is a wasteful number, since it uses less digits than its factorization.

137487381855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19615.

The product of its digits is 22579200, while the sum is 60.

The spelling of 137487381855 in words is "one hundred thirty-seven billion, four hundred eighty-seven million, three hundred eighty-one thousand, eight hundred fifty-five".