891142066462 has 32 divisors (see below), whose sum is σ = 1372894790400. Its totient is φ = 433653592320.

The previous prime is 891142066459. The next prime is 891142066523. The reversal of 891142066462 is 264660241198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11982163 + ... + 12056305.

It is an arithmetic number, because the mean of its divisors is an integer number (42902962200).

Almost surely, 2^891142066462 is an apocalyptic number.

891142066462 is a deficient number, since it is larger than the sum of its proper divisors (481752723938).

891142066462 is a wasteful number, since it uses less digits than its factorization.

891142066462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75108.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 891142066462 in words is "eight hundred ninety-one billion, one hundred forty-two million, sixty-six thousand, four hundred sixty-two".