1154722989672 has 64 divisors (see below), whose sum is σ = 3665787273600. Its totient is φ = 329920853760.

The previous prime is 1154722989661. The next prime is 1154722989689. The reversal of 1154722989672 is 2769892274511.

1154722989672 is a `hidden beast` number, since 1 + 1 + 5 + 472 + 2 + 9 + 8 + 96 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381851329 + ... + 381854352.

It is an arithmetic number, because the mean of its divisors is an integer number (57277926150).

Almost surely, 2^{1154722989672} is an apocalyptic number.

1154722989672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1154722989672 is an abundant number, since it is smaller than the sum of its proper divisors (2511064283928).

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

1154722989672 is a wasteful number, since it uses less digits than its factorization.

1154722989672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763705703 (or 763705693 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 1154722989672 in words is "one trillion, one hundred fifty-four billion, seven hundred twenty-two million, nine hundred eighty-nine thousand, six hundred seventy-two".