1128451435623 has 12 divisors (see below), whose sum is σ = 1633875592440. Its totient is φ = 750505486896.

The previous prime is 1128451435583. The next prime is 1128451435651. The reversal of 1128451435623 is 3265341548211.

1128451435623 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 4 + 5 + 14 + 3 + 5 + 623 = 666.

It is not a de Polignac number, because 1128451435623 - 2¹⁰ = 1128451434599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128451434623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149618536 + ... + 149626077.

It is an arithmetic number, because the mean of its divisors is an integer number (136156299370).

Almost surely, 2^{1128451435623} is an apocalyptic number.

1128451435623 is a deficient number, since it is larger than the sum of its proper divisors (505424156817).

1128451435623 is a wasteful number, since it uses less digits than its factorization.

1128451435623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299245038 (or 299245035 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 1128451435623 in words is "one trillion, one hundred twenty-eight billion, four hundred fifty-one million, four hundred thirty-five thousand, six hundred twenty-three".