1097985729170 has 32 divisors (see below), whose sum is σ = 2170323179136. Its totient is φ = 396623376000.

The previous prime is 1097985729121. The next prime is 1097985729301. The reversal of 1097985729170 is 719275897901.

1097985729170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1097985729170² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1097985729097 and 1097985729106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33035339 + ... + 33068558.

It is an arithmetic number, because the mean of its divisors is an integer number (67822599348).

Almost surely, 2^{1097985729170} is an apocalyptic number.

1097985729170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1097985729170 is a deficient number, since it is larger than the sum of its proper divisors (1072337449966).

1097985729170 is a wasteful number, since it uses less digits than its factorization.

1097985729170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66104066.

The product of its (nonzero) digits is 20003760, while the sum is 65.

The spelling of 1097985729170 in words is "one trillion, ninety-seven billion, nine hundred eighty-five million, seven hundred twenty-nine thousand, one hundred seventy".