997348970919 has 48 divisors (see below), whose sum is σ = 1680851604480. Its totient is φ = 522501477120.

The previous prime is 997348970819. The next prime is 997348970921. The reversal of 997348970919 is 919079843799.

It is not a de Polignac number, because 997348970919 - 2⁹ = 997348970407 is a prime.

It is a super-2 number, since 2×997348970919² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997348970999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5672914 + ... + 5846079.

It is an arithmetic number, because the mean of its divisors is an integer number (35017741760).

Almost surely, 2^997348970919 is an apocalyptic number.

997348970919 is a deficient number, since it is larger than the sum of its proper divisors (683502633561).

997348970919 is a wasteful number, since it uses less digits than its factorization.

997348970919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11519060 (or 11519053 counting only the distinct ones).

The product of its (nonzero) digits is 277766496, while the sum is 75.

The spelling of 997348970919 in words is "nine hundred ninety-seven billion, three hundred forty-eight million, nine hundred seventy thousand, nine hundred nineteen".