677920691541 has 16 divisors (see below), whose sum is σ = 910838522880. Its totient is φ = 448475330160.

The previous prime is 677920691537. The next prime is 677920691587. The reversal of 677920691541 is 145196029776.

It is a happy number.

It is not a de Polignac number, because 677920691541 - 2² = 677920691537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677920691521) 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, 14117350 + ... + 14165288.

It is an arithmetic number, because the mean of its divisors is an integer number (56927407680).

Almost surely, 2^677920691541 is an apocalyptic number.

It is an amenable number.

677920691541 is a deficient number, since it is larger than the sum of its proper divisors (232917831339).

677920691541 is a wasteful number, since it uses less digits than its factorization.

677920691541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84056.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 677920691541 in words is "six hundred seventy-seven billion, nine hundred twenty million, six hundred ninety-one thousand, five hundred forty-one".