1071685792691 has 8 divisors (see below), whose sum is σ = 1072513444464. Its totient is φ = 1070858437920.

The previous prime is 1071685792679. The next prime is 1071685792717. The reversal of 1071685792691 is 1962975861701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1071685792691 - 2¹⁸ = 1071685530547 is a prime.

It is a super-2 number, since 2×1071685792691² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071685794691) 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, 7435685 + ... + 7578441.

It is an arithmetic number, because the mean of its divisors is an integer number (134064180558).

Almost surely, 2^{1071685792691} is an apocalyptic number.

1071685792691 is a deficient number, since it is larger than the sum of its proper divisors (827651773).

1071685792691 is a wasteful number, since it uses less digits than its factorization.

1071685792691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148501.

The product of its (nonzero) digits is 11430720, while the sum is 62.

The spelling of 1071685792691 in words is "one trillion, seventy-one billion, six hundred eighty-five million, seven hundred ninety-two thousand, six hundred ninety-one".