1085177693442 has 32 divisors (see below), whose sum is σ = 2172385163520. Its totient is φ = 361387758080.

The previous prime is 1085177693441. The next prime is 1085177693533. The reversal of 1085177693442 is 2443967715801.

It is a super-2 number, since 2×1085177693442² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1085177693441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31603159 + ... + 31637477.

It is an arithmetic number, because the mean of its divisors is an integer number (67887036360).

It is a 1-persistent number, because it is pandigital, but 2⋅1085177693442 = 2170355386884 is not.

Almost surely, 2^{1085177693442} is an apocalyptic number.

1085177693442 is an abundant number, since it is smaller than the sum of its proper divisors (1087207470078).

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

1085177693442 is a wasteful number, since it uses less digits than its factorization.

1085177693442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39098.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 1085177693442 in words is "one trillion, eighty-five billion, one hundred seventy-seven million, six hundred ninety-three thousand, four hundred forty-two".