62728857138 has 16 divisors (see below), whose sum is σ = 126360289440. Its totient is φ = 20759189856.

The previous prime is 62728857101. The next prime is 62728857241. The reversal of 62728857138 is 83175882726.

It is a super-2 number, since 2×62728857138² (a number of 22 digits) contains 22 as substring.

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, 37606395 + ... + 37608062.

It is an arithmetic number, because the mean of its divisors is an integer number (7897518090).

Almost surely, 2^62728857138 is an apocalyptic number.

62728857138 is an abundant number, since it is smaller than the sum of its proper divisors (63631432302).

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

62728857138 is a wasteful number, since it uses less digits than its factorization.

62728857138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75214601.

The product of its digits is 9031680, while the sum is 57.

The spelling of 62728857138 in words is "sixty-two billion, seven hundred twenty-eight million, eight hundred fifty-seven thousand, one hundred thirty-eight".