1154942436478 has 16 divisors (see below), whose sum is σ = 1765930124880. Its totient is φ = 566309301376.

The previous prime is 1154942436469. The next prime is 1154942436481. The reversal of 1154942436478 is 8746342494511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333200 + ... + 2784547.

It is an arithmetic number, because the mean of its divisors is an integer number (110370632805).

Almost surely, 2^{1154942436478} is an apocalyptic number.

1154942436478 is a deficient number, since it is larger than the sum of its proper divisors (610987688402).

1154942436478 is a wasteful number, since it uses less digits than its factorization.

1154942436478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119931.

The product of its digits is 23224320, while the sum is 58.

The spelling of 1154942436478 in words is "one trillion, one hundred fifty-four billion, nine hundred forty-two million, four hundred thirty-six thousand, four hundred seventy-eight".