997571611484 has 36 divisors (see below), whose sum is σ = 2030833465416. Its totient is φ = 427517493984.

The previous prime is 997571611471. The next prime is 997571611499. The reversal of 997571611484 is 484116175799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8896979 + ... + 9008405.

It is an arithmetic number, because the mean of its divisors is an integer number (56412040706).

Almost surely, 2^997571611484 is an apocalyptic number.

It is an amenable number.

997571611484 is an abundant number, since it is smaller than the sum of its proper divisors (1033261853932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997571611484 is a wasteful number, since it uses less digits than its factorization.

997571611484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157122 (or 157113 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 62.

The spelling of 997571611484 in words is "nine hundred ninety-seven billion, five hundred seventy-one million, six hundred eleven thousand, four hundred eighty-four".