1127017661820 has 24 divisors (see below), whose sum is σ = 3155649453264. Its totient is φ = 300538043136.

The previous prime is 1127017661807. The next prime is 1127017661821. The reversal of 1127017661820 is 281667107211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127017661821) 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, 9391813789 + ... + 9391813908.

It is an arithmetic number, because the mean of its divisors is an integer number (131485393886).

Almost surely, 2^{1127017661820} is an apocalyptic number.

1127017661820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1127017661820 is an abundant number, since it is smaller than the sum of its proper divisors (2028631791444).

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

1127017661820 is a wasteful number, since it uses less digits than its factorization.

1127017661820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18783627709 (or 18783627707 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 1127017661820 in words is "one trillion, one hundred twenty-seven billion, seventeen million, six hundred sixty-one thousand, eight hundred twenty".