137217409939 has 8 divisors (see below), whose sum is σ = 142509430080. Its totient is φ = 132008728896.

The previous prime is 137217409937. The next prime is 137217409943. The reversal of 137217409939 is 939904712731.

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 137217409939 - 2¹ = 137217409937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137217409939.

It is not an unprimeable number, because it can be changed into a prime (137217409937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20831419 + ... + 20838004.

It is an arithmetic number, because the mean of its divisors is an integer number (17813678760).

Almost surely, 2^137217409939 is an apocalyptic number.

137217409939 is a deficient number, since it is larger than the sum of its proper divisors (5292020141).

137217409939 is an equidigital number, since it uses as much as digits as its factorization.

137217409939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41669549.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 137217409939 in words is "one hundred thirty-seven billion, two hundred seventeen million, four hundred nine thousand, nine hundred thirty-nine".