1154423807429 has 4 divisors (see below), whose sum is σ = 1191663285120. Its totient is φ = 1117184329740.

The previous prime is 1154423807401. The next prime is 1154423807431. The reversal of 1154423807429 is 9247083244511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1154423807429 - 2⁴⁰ = 54912179653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154423807479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18619738799 + ... + 18619738860.

It is an arithmetic number, because the mean of its divisors is an integer number (297915821280).

Almost surely, 2^{1154423807429} is an apocalyptic number.

It is an amenable number.

1154423807429 is a deficient number, since it is larger than the sum of its proper divisors (37239477691).

1154423807429 is an equidigital number, since it uses as much as digits as its factorization.

1154423807429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37239477690.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 1154423807429 in words is "one trillion, one hundred fifty-four billion, four hundred twenty-three million, eight hundred seven thousand, four hundred twenty-nine".