677740743685 has 32 divisors (see below), whose sum is σ = 841676774400. Its totient is φ = 523358945280.

The previous prime is 677740743643. The next prime is 677740743733. The reversal of 677740743685 is 586347047776.

677740743685 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 677740743685 - 2¹⁵ = 677740710917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108106731 + ... + 108112999.

It is an arithmetic number, because the mean of its divisors is an integer number (26302399200).

Almost surely, 2^677740743685 is an apocalyptic number.

It is an amenable number.

677740743685 is a deficient number, since it is larger than the sum of its proper divisors (163936030715).

677740743685 is a wasteful number, since it uses less digits than its factorization.

677740743685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981.

The product of its (nonzero) digits is 165957120, while the sum is 64.

The spelling of 677740743685 in words is "six hundred seventy-seven billion, seven hundred forty million, seven hundred forty-three thousand, six hundred eighty-five".