137438887615 has 8 divisors (see below), whose sum is σ = 164971540800. Its totient is φ = 109921192992.

The previous prime is 137438887571. The next prime is 137438887637. The reversal of 137438887615 is 516788834731.

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

It is a cyclic number.

It is not a de Polignac number, because 137438887615 - 2²⁹ = 136902016703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3719415 + ... + 3756184.

It is an arithmetic number, because the mean of its divisors is an integer number (20621442600).

Almost surely, 2^137438887615 is an apocalyptic number.

137438887615 is a deficient number, since it is larger than the sum of its proper divisors (27532653185).

137438887615 is an equidigital number, since it uses as much as digits as its factorization.

137438887615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479281.

The product of its digits is 27095040, while the sum is 61.

The spelling of 137438887615 in words is "one hundred thirty-seven billion, four hundred thirty-eight million, eight hundred eighty-seven thousand, six hundred fifteen".