137020678028 has 96 divisors (see below), whose sum is σ = 280547688960. Its totient is φ = 57976611840.

The previous prime is 137020678021. The next prime is 137020678051. The reversal of 137020678028 is 820876020731.

It is a happy number.

It is a super-3 number, since 3×137020678028³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137020678028.

It is not an unprimeable number, because it can be changed into a prime (137020678021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14401793 + ... + 14411303.

It is an arithmetic number, because the mean of its divisors is an integer number (2922371760).

Almost surely, 2^137020678028 is an apocalyptic number.

It is an amenable number.

137020678028 is an abundant number, since it is smaller than the sum of its proper divisors (143527010932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137020678028 is a wasteful number, since it uses less digits than its factorization.

137020678028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9967 (or 9965 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

Adding to 137020678028 its reverse (820876020731), we get a palindrome (957896698759).

The spelling of 137020678028 in words is "one hundred thirty-seven billion, twenty million, six hundred seventy-eight thousand, twenty-eight".