677090658981 has 32 divisors (see below), whose sum is σ = 1043237615616. Its totient is φ = 386054240000.

The previous prime is 677090658919. The next prime is 677090659013. The reversal of 677090658981 is 189856090776.

It is not a de Polignac number, because 677090658981 - 2¹¹ = 677090656933 is a prime.

It is a super-2 number, since 2×677090658981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677090658781) 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 31 ways as a sum of consecutive naturals, for example, 1062226 + ... + 1575596.

It is an arithmetic number, because the mean of its divisors is an integer number (32601175488).

Almost surely, 2^677090658981 is an apocalyptic number.

It is an amenable number.

677090658981 is a deficient number, since it is larger than the sum of its proper divisors (366146956635).

677090658981 is a wasteful number, since it uses less digits than its factorization.

677090658981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515753.

The product of its (nonzero) digits is 45722880, while the sum is 66.

The spelling of 677090658981 in words is "six hundred seventy-seven billion, ninety million, six hundred fifty-eight thousand, nine hundred eighty-one".