677950404543 has 12 divisors (see below), whose sum is σ = 988957357128. Its totient is φ = 447492015600.

The previous prime is 677950404533. The next prime is 677950404569. The reversal of 677950404543 is 345404059776.

677950404543 is a `hidden beast` number, since 6 + 7 + 7 + 9 + 50 + 40 + 4 + 543 = 666.

It is not a de Polignac number, because 677950404543 - 2²¹ = 677948307391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677950404543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677950404533) 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, 372909105 + ... + 372910922.

It is an arithmetic number, because the mean of its divisors is an integer number (82413113094).

Almost surely, 2^677950404543 is an apocalyptic number.

677950404543 is a deficient number, since it is larger than the sum of its proper divisors (311006952585).

677950404543 is a wasteful number, since it uses less digits than its factorization.

677950404543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745820134 (or 745820131 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 677950404543 in words is "six hundred seventy-seven billion, nine hundred fifty million, four hundred four thousand, five hundred forty-three".