1154638942974 has 48 divisors (see below), whose sum is σ = 2889684635760. Its totient is φ = 329308788480.

The previous prime is 1154638942973. The next prime is 1154638942997. The reversal of 1154638942974 is 4792498364511.

1154638942974 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 63 + 89 + 429 + 74 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154638942973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171511629 + ... + 171518360.

It is an arithmetic number, because the mean of its divisors is an integer number (60201763245).

Almost surely, 2^{1154638942974} is an apocalyptic number.

1154638942974 is an abundant number, since it is smaller than the sum of its proper divisors (1735045692786).

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

1154638942974 is a wasteful number, since it uses less digits than its factorization.

1154638942974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343030025 (or 343030022 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 1154638942974 in words is "one trillion, one hundred fifty-four billion, six hundred thirty-eight million, nine hundred forty-two thousand, nine hundred seventy-four".