978871263643600 has 60 divisors (see below), whose sum is σ = 2427600733866880. Its totient is φ = 378917908502400.

The previous prime is 978871263643547. The next prime is 978871263643601. The reversal of 978871263643600 is 6346362178879.

It is a self number, because there is not a number n which added to its sum of digits gives 978871263643600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978871263643601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39470603070 + ... + 39470627869.

Almost surely, 2^{978871263643600} is an apocalyptic number.

It is an amenable number.

978871263643600 is an abundant number, since it is smaller than the sum of its proper divisors (1448729470223280).

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

978871263643600 is a wasteful number, since it uses less digits than its factorization.

978871263643600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78941230988 (or 78941230977 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 70.

The spelling of 978871263643600 in words is "nine hundred seventy-eight trillion, eight hundred seventy-one billion, two hundred sixty-three million, six hundred forty-three thousand, six hundred".