1151977697279 has 4 divisors (see below), whose sum is σ = 1156077262320. Its totient is φ = 1147878132240.

The previous prime is 1151977697267. The next prime is 1151977697359. The reversal of 1151977697279 is 9727967791511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1151977697279 - 2⁸ = 1151977697023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151977697179) 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, 2049782099 + ... + 2049782660.

It is an arithmetic number, because the mean of its divisors is an integer number (289019315580).

Almost surely, 2^{1151977697279} is an apocalyptic number.

1151977697279 is a deficient number, since it is larger than the sum of its proper divisors (4099565041).

1151977697279 is an equidigital number, since it uses as much as digits as its factorization.

1151977697279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099565040.

The product of its digits is 105019740, while the sum is 71.

The spelling of 1151977697279 in words is "one trillion, one hundred fifty-one billion, nine hundred seventy-seven million, six hundred ninety-seven thousand, two hundred seventy-nine".