1081194495500 has 192 divisors, whose sum is σ = 2740790148096. Its totient is φ = 364927680000.

The previous prime is 1081194495439. The next prime is 1081194495523. The reversal of 1081194495500 is 55944911801.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145886795 + ... + 145894205.

It is an arithmetic number, because the mean of its divisors is an integer number (14274948688).

Almost surely, 2^{1081194495500} is an apocalyptic number.

1081194495500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081194495500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370395074048).

1081194495500 is an abundant number, since it is smaller than the sum of its proper divisors (1659595652596).

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

1081194495500 is a wasteful number, since it uses less digits than its factorization.

1081194495500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8081 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 1081194495500 in words is "one trillion, eighty-one billion, one hundred ninety-four million, four hundred ninety-five thousand, five hundred".