997349755632 has 20 divisors (see below), whose sum is σ = 2576486868840. Its totient is φ = 332449918528.

The previous prime is 997349755631. The next prime is 997349755663. The reversal of 997349755632 is 236557943799.

997349755632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997349755631) 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, 10389059907 + ... + 10389060002.

It is an arithmetic number, because the mean of its divisors is an integer number (128824343442).

Almost surely, 2^997349755632 is an apocalyptic number.

It is an amenable number.

997349755632 is an abundant number, since it is smaller than the sum of its proper divisors (1579137113208).

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

997349755632 is a wasteful number, since it uses less digits than its factorization.

997349755632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20778119920 (or 20778119914 counting only the distinct ones).

The product of its digits is 385786800, while the sum is 69.

The spelling of 997349755632 in words is "nine hundred ninety-seven billion, three hundred forty-nine million, seven hundred fifty-five thousand, six hundred thirty-two".