978141991463 has 16 divisors (see below), whose sum is σ = 1233229682496. Its totient is φ = 755038575360.

The previous prime is 978141991427. The next prime is 978141991501. The reversal of 978141991463 is 364199141879.

It is a cyclic number.

It is not a de Polignac number, because 978141991463 - 2⁶ = 978141991399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 978141991396 and 978141991405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978141991163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131079356 + ... + 131086817.

It is an arithmetic number, because the mean of its divisors is an integer number (77076855156).

Almost surely, 2^978141991463 is an apocalyptic number.

978141991463 is a deficient number, since it is larger than the sum of its proper divisors (255087691033).

978141991463 is a wasteful number, since it uses less digits than its factorization.

978141991463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262166234.

The product of its digits is 11757312, while the sum is 62.

The spelling of 978141991463 in words is "nine hundred seventy-eight billion, one hundred forty-one million, nine hundred ninety-one thousand, four hundred sixty-three".