997112562772 has 6 divisors (see below), whose sum is σ = 1744946984858. Its totient is φ = 498556281384.

The previous prime is 997112562739. The next prime is 997112562889. The reversal of 997112562772 is 277265211799.

It can be written as a sum of positive squares in only one way, i.e., 842257720516 + 154854842256 = 917746^2 + 393516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124639070343 + ... + 124639070350.

Almost surely, 2^997112562772 is an apocalyptic number.

It is an amenable number.

997112562772 is a deficient number, since it is larger than the sum of its proper divisors (747834422086).

997112562772 is a wasteful number, since it uses less digits than its factorization.

997112562772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249278140697 (or 249278140695 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 58.

The spelling of 997112562772 in words is "nine hundred ninety-seven billion, one hundred twelve million, five hundred sixty-two thousand, seven hundred seventy-two".