1151977697281 has 8 divisors (see below), whose sum is σ = 1152588769280. Its totient is φ = 1151366794848.

The previous prime is 1151977697267. The next prime is 1151977697359. The reversal of 1151977697281 is 1827967791511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151977697281 - 2⁹ = 1151977696769 is a prime.

It is a super-2 number, since 2×1151977697281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151977697681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14913100 + ... + 14990146.

It is an arithmetic number, because the mean of its divisors is an integer number (144073596160).

Almost surely, 2^{1151977697281} is an apocalyptic number.

It is an amenable number.

1151977697281 is a deficient number, since it is larger than the sum of its proper divisors (611071999).

1151977697281 is an equidigital number, since it uses as much as digits as its factorization.

1151977697281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84783.

The product of its digits is 13335840, while the sum is 64.

The spelling of 1151977697281 in words is "one trillion, one hundred fifty-one billion, nine hundred seventy-seven million, six hundred ninety-seven thousand, two hundred eighty-one".