1047726647538 has 16 divisors (see below), whose sum is σ = 2099979117696. Its totient is φ = 348487912080.

The previous prime is 1047726647537. The next prime is 1047726647549. The reversal of 1047726647538 is 8357466277401.

It is a super-2 number, since 2×1047726647538² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1047726647537) 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, 188572933 + ... + 188578488.

It is an arithmetic number, because the mean of its divisors is an integer number (131248694856).

Almost surely, 2^{1047726647538} is an apocalyptic number.

1047726647538 is an abundant number, since it is smaller than the sum of its proper divisors (1052252470158).

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

1047726647538 is a wasteful number, since it uses less digits than its factorization.

1047726647538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377151889.

The product of its (nonzero) digits is 47416320, while the sum is 60.

The spelling of 1047726647538 in words is "one trillion, forty-seven billion, seven hundred twenty-six million, six hundred forty-seven thousand, five hundred thirty-eight".