1049701728138 has 16 divisors (see below), whose sum is σ = 2399318235840. Its totient is φ = 299914779456.

The previous prime is 1049701728137. The next prime is 1049701728151. The reversal of 1049701728138 is 8318271079401.

It is a super-2 number, since 2×1049701728138² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049701728137) 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, 12496449103 + ... + 12496449186.

It is an arithmetic number, because the mean of its divisors is an integer number (149957389740).

Almost surely, 2^{1049701728138} is an apocalyptic number.

1049701728138 is an abundant number, since it is smaller than the sum of its proper divisors (1349616507702).

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

1049701728138 is a wasteful number, since it uses less digits than its factorization.

1049701728138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24992898301.

The product of its (nonzero) digits is 677376, while the sum is 51.

The spelling of 1049701728138 in words is "one trillion, forty-nine billion, seven hundred one million, seven hundred twenty-eight thousand, one hundred thirty-eight".