677508530725 has 48 divisors (see below), whose sum is σ = 936917939664. Its totient is φ = 482826240000.

The previous prime is 677508530717. The next prime is 677508530759. The reversal of 677508530725 is 527035805776.

It can be written as a sum of positive squares in 24 ways, for example, as 490316451076 + 187192079649 = 700226^2 + 432657^2 .

It is not a de Polignac number, because 677508530725 - 2³ = 677508530717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 728325 + ... + 1373125.

It is an arithmetic number, because the mean of its divisors is an integer number (19519123743).

Almost surely, 2^677508530725 is an apocalyptic number.

677508530725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

677508530725 is a deficient number, since it is larger than the sum of its proper divisors (259409408939).

677508530725 is a wasteful number, since it uses less digits than its factorization.

677508530725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644938 (or 644933 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 677508530725 in words is "six hundred seventy-seven billion, five hundred eight million, five hundred thirty thousand, seven hundred twenty-five".