139538934889 has 8 divisors (see below), whose sum is σ = 141114204000. Its totient is φ = 137963830752.

The previous prime is 139538934877. The next prime is 139538934901. The reversal of 139538934889 is 988439835931.

It is an interprime number because it is at equal distance from previous prime (139538934877) and next prime (139538934901).

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 139538934889 - 2¹³ = 139538926697 is a prime.

It is a super-2 number, since 2×139538934889² (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 (139538934839) 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, 2627602 + ... + 2680180.

It is an arithmetic number, because the mean of its divisors is an integer number (17639275500).

Almost surely, 2^139538934889 is an apocalyptic number.

It is an amenable number.

139538934889 is a deficient number, since it is larger than the sum of its proper divisors (1575269111).

139538934889 is an equidigital number, since it uses as much as digits as its factorization.

139538934889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82487.

The product of its digits is 201553920, while the sum is 70.

The spelling of 139538934889 in words is "one hundred thirty-nine billion, five hundred thirty-eight million, nine hundred thirty-four thousand, eight hundred eighty-nine".