1097172117040 has 20 divisors (see below), whose sum is σ = 2550925172304. Its totient is φ = 438868846784.

The previous prime is 1097172117011. The next prime is 1097172117061. The reversal of 1097172117040 is 407112717901.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1097172116984 and 1097172117002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6857325652 + ... + 6857325811.

Almost surely, 2^{1097172117040} is an apocalyptic number.

1097172117040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097172117040 is an abundant number, since it is smaller than the sum of its proper divisors (1453753055264).

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

1097172117040 is a wasteful number, since it uses less digits than its factorization.

1097172117040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13714651476 (or 13714651470 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 40.

The spelling of 1097172117040 in words is "one trillion, ninety-seven billion, one hundred seventy-two million, one hundred seventeen thousand, forty".