991460644376 has 16 divisors (see below), whose sum is σ = 1904329896840. Its totient is φ = 483639338560.

The previous prime is 991460644357. The next prime is 991460644379. The reversal of 991460644376 is 673446064199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (991460644379) 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, 1511372606 + ... + 1511373261.

Almost surely, 2^991460644376 is an apocalyptic number.

It is an amenable number.

991460644376 is a deficient number, since it is larger than the sum of its proper divisors (912869252464).

991460644376 is a wasteful number, since it uses less digits than its factorization.

991460644376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022745914 (or 3022745910 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 59.

The spelling of 991460644376 in words is "nine hundred ninety-one billion, four hundred sixty million, six hundred forty-four thousand, three hundred seventy-six".