1077991510863 has 32 divisors (see below), whose sum is σ = 1518056467200. Its totient is φ = 679662441216.

The previous prime is 1077991510859. The next prime is 1077991510879. The reversal of 1077991510863 is 3680151997701.

It is a happy number.

It is not a de Polignac number, because 1077991510863 - 2² = 1077991510859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077991550863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341881 + ... + 1507602.

It is an arithmetic number, because the mean of its divisors is an integer number (47439264600).

Almost surely, 2^{1077991510863} is an apocalyptic number.

1077991510863 is a deficient number, since it is larger than the sum of its proper divisors (440064956337).

1077991510863 is a wasteful number, since it uses less digits than its factorization.

1077991510863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849671.

The product of its (nonzero) digits is 2857680, while the sum is 57.

The spelling of 1077991510863 in words is "one trillion, seventy-seven billion, nine hundred ninety-one million, five hundred ten thousand, eight hundred sixty-three".