981677458431 has 12 divisors (see below), whose sum is σ = 1417991892408. Its totient is φ = 654445481424.

The previous prime is 981677458403. The next prime is 981677458493. The reversal of 981677458431 is 134854776189.

981677458431 is a `hidden beast` number, since 9 + 8 + 16 + 7 + 7 + 4 + 584 + 31 = 666.

981677458431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 981677458431 - 2⁶ = 981677458367 is a prime.

It is a super-2 number, since 2×981677458431² (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 (981677458031) 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, 630796 + ... + 1536638.

It is an arithmetic number, because the mean of its divisors is an integer number (118165991034).

Almost surely, 2^981677458431 is an apocalyptic number.

981677458431 is a deficient number, since it is larger than the sum of its proper divisors (436314433977).

981677458431 is a wasteful number, since it uses less digits than its factorization.

981677458431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026262 (or 1026259 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 981677458431 in words is "nine hundred eighty-one billion, six hundred seventy-seven million, four hundred fifty-eight thousand, four hundred thirty-one".