1071794638726 has 12 divisors (see below), whose sum is σ = 1870172277948. Its totient is φ = 459340559412.

The previous prime is 1071794638687. The next prime is 1071794638729. The reversal of 1071794638726 is 6278364971701.

It is a super-2 number, since 2×1071794638726² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071794638729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5468339896 + ... + 5468340091.

It is an arithmetic number, because the mean of its divisors is an integer number (155847689829).

Almost surely, 2^{1071794638726} is an apocalyptic number.

1071794638726 is a deficient number, since it is larger than the sum of its proper divisors (798377639222).

1071794638726 is a wasteful number, since it uses less digits than its factorization.

1071794638726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10936680003 (or 10936679996 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 1071794638726 in words is "one trillion, seventy-one billion, seven hundred ninety-four million, six hundred thirty-eight thousand, seven hundred twenty-six".