1153729776 has 20 divisors (see below), whose sum is σ = 2980468712. Its totient is φ = 384576576.

The previous prime is 1153729739. The next prime is 1153729789. The reversal of 1153729776 is 6779273511.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 24036037 = 1153729776 / (1 + 1 + 5 + 3 + 7 + 2 + 9 + 7 + 7 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12017971 + ... + 12018066.

Almost surely, 2^1153729776 is an apocalyptic number.

1153729776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1153729776 is an abundant number, since it is smaller than the sum of its proper divisors (1826738936).

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

1153729776 is a wasteful number, since it uses less digits than its factorization.

1153729776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24036048 (or 24036042 counting only the distinct ones).

The product of its digits is 555660, while the sum is 48.

The square root of 1153729776 is about 33966.5979456289. The cubic root of 1153729776 is about 1048.8209822761.

The spelling of 1153729776 in words is "one billion, one hundred fifty-three million, seven hundred twenty-nine thousand, seven hundred seventy-six".