1124820457780 has 12 divisors (see below), whose sum is σ = 2362122961380. Its totient is φ = 449928183104.

The previous prime is 1124820457763. The next prime is 1124820457793. The reversal of 1124820457780 is 877540284211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 172705074084 + 952115383696 = 415578^2 + 975764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28120511425 + ... + 28120511464.

It is an arithmetic number, because the mean of its divisors is an integer number (196843580115).

Almost surely, 2^{1124820457780} is an apocalyptic number.

1124820457780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1124820457780 is an abundant number, since it is smaller than the sum of its proper divisors (1237302503600).

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

1124820457780 is a wasteful number, since it uses less digits than its factorization.

1124820457780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56241022898 (or 56241022896 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 1124820457780 in words is "one trillion, one hundred twenty-four billion, eight hundred twenty million, four hundred fifty-seven thousand, seven hundred eighty".