1097956709860 has 48 divisors (see below), whose sum is σ = 2347067608704. Its totient is φ = 431343779328.

The previous prime is 1097956709803. The next prime is 1097956709881. The reversal of 1097956709860 is 689076597901.

It is a Harshad number since it is a multiple of its sum of digits (67).

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, 764104 + ... + 1667263.

It is an arithmetic number, because the mean of its divisors is an integer number (48897241848).

Almost surely, 2^{1097956709860} is an apocalyptic number.

1097956709860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097956709860 is an abundant number, since it is smaller than the sum of its proper divisors (1249110898844).

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

1097956709860 is a wasteful number, since it uses less digits than its factorization.

1097956709860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431780 (or 2431778 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 67.

The spelling of 1097956709860 in words is "one trillion, ninety-seven billion, nine hundred fifty-six million, seven hundred nine thousand, eight hundred sixty".