997512070850 has 96 divisors (see below), whose sum is σ = 1888806180096. Its totient is φ = 391895884800.

The previous prime is 997512070831. The next prime is 997512070903. The reversal of 997512070850 is 58070215799.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 997512070792 and 997512070801.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 301634897 + ... + 301638203.

It is an arithmetic number, because the mean of its divisors is an integer number (19675064376).

Almost surely, 2^997512070850 is an apocalyptic number.

997512070850 is a deficient number, since it is larger than the sum of its proper divisors (891294109246).

997512070850 is a wasteful number, since it uses less digits than its factorization.

With its successor (997512070851) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (3895).

With its successor (997512070851) it forms an eRAP, since the sums of their prime factors are consecutive (3900 and 3901).

997512070850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 53.

The spelling of 997512070850 in words is "nine hundred ninety-seven billion, five hundred twelve million, seventy thousand, eight hundred fifty".