1097957719785 has 8 divisors (see below), whose sum is σ = 1756732351680. Its totient is φ = 585577450544.

The previous prime is 1097957719721. The next prime is 1097957719787. The reversal of 1097957719785 is 5879177597901.

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 1097957719785 - 2⁶ = 1097957719721 is a prime.

It is a super-2 number, since 2×1097957719785² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1097957719787) 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, 36598590645 + ... + 36598590674.

It is an arithmetic number, because the mean of its divisors is an integer number (219591543960).

Almost surely, 2^{1097957719785} is an apocalyptic number.

1097957719785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1097957719785 is a deficient number, since it is larger than the sum of its proper divisors (658774631895).

1097957719785 is an equidigital number, since it uses as much as digits as its factorization.

1097957719785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73197181327.

The product of its (nonzero) digits is 350065800, while the sum is 75.

The spelling of 1097957719785 in words is "one trillion, ninety-seven billion, nine hundred fifty-seven million, seven hundred nineteen thousand, seven hundred eighty-five".