137947782515 has 8 divisors (see below), whose sum is σ = 165539980368. Its totient is φ = 110356465120.

The previous prime is 137947782499. The next prime is 137947782517. The reversal of 137947782515 is 515287749731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137947782515 - 2⁴ = 137947782499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137947782517) 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 7 ways as a sum of consecutive naturals, for example, 196145 + ... + 560685.

It is an arithmetic number, because the mean of its divisors is an integer number (20692497546).

Almost surely, 2^137947782515 is an apocalyptic number.

137947782515 is a deficient number, since it is larger than the sum of its proper divisors (27592197853).

137947782515 is an equidigital number, since it uses as much as digits as its factorization.

137947782515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440229.

The product of its digits is 14817600, while the sum is 59.

The spelling of 137947782515 in words is "one hundred thirty-seven billion, nine hundred forty-seven million, seven hundred eighty-two thousand, five hundred fifteen".