137933685587 has 4 divisors (see below), whose sum is σ = 146047431816. Its totient is φ = 129819939360.

The previous prime is 137933685583. The next prime is 137933685607. The reversal of 137933685587 is 785586339731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137933685587 - 2² = 137933685583 is a prime.

It is a super-2 number, since 2×137933685587² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137933685581) 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 3 ways as a sum of consecutive naturals, for example, 4056873089 + ... + 4056873122.

It is an arithmetic number, because the mean of its divisors is an integer number (36511857954).

Almost surely, 2^137933685587 is an apocalyptic number.

137933685587 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

137933685587 is a deficient number, since it is larger than the sum of its proper divisors (8113746229).

137933685587 is an equidigital number, since it uses as much as digits as its factorization.

137933685587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113746228.

The product of its digits is 114307200, while the sum is 65.

The spelling of 137933685587 in words is "one hundred thirty-seven billion, nine hundred thirty-three million, six hundred eighty-five thousand, five hundred eighty-seven".