997342087895 has 8 divisors (see below), whose sum is σ = 1197093397920. Its totient is φ = 797685075360.

The previous prime is 997342087871. The next prime is 997342087901. The reversal of 997342087895 is 598780243799.

997342087895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 997342087895 - 2⁸ = 997342087639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23551100 + ... + 23593409.

It is an arithmetic number, because the mean of its divisors is an integer number (149636674740).

Almost surely, 2^997342087895 is an apocalyptic number.

997342087895 is a deficient number, since it is larger than the sum of its proper divisors (199751310025).

997342087895 is a wasteful number, since it uses less digits than its factorization.

997342087895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47148745.

The product of its (nonzero) digits is 274337280, while the sum is 71.

The spelling of 997342087895 in words is "nine hundred ninety-seven billion, three hundred forty-two million, eighty-seven thousand, eight hundred ninety-five".