978054986231 has 8 divisors (see below), whose sum is σ = 985989646224. Its totient is φ = 970150325760.

The previous prime is 978054986197. The next prime is 978054986281. The reversal of 978054986231 is 132689450879.

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

It is a cyclic number.

It is not a de Polignac number, because 978054986231 - 2²⁶ = 977987877367 is a prime.

It is a super-2 number, since 2×978054986231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978054986281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7434410 + ... + 7564823.

It is an arithmetic number, because the mean of its divisors is an integer number (123248705778).

It is a 1-persistent number, because it is pandigital, but 2⋅978054986231 = 1956109972462 is not.

Almost surely, 2^978054986231 is an apocalyptic number.

978054986231 is a deficient number, since it is larger than the sum of its proper divisors (7934659993).

978054986231 is a wasteful number, since it uses less digits than its factorization.

978054986231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14999761.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 978054986231 in words is "nine hundred seventy-eight billion, fifty-four million, nine hundred eighty-six thousand, two hundred thirty-one".