1676857387397 has 16 divisors (see below), whose sum is σ = 1736489041920. Its totient is φ = 1617579255600.

The previous prime is 1676857387363. The next prime is 1676857387421. The reversal of 1676857387397 is 7937837586761.

It is a cyclic number.

It is not a de Polignac number, because 1676857387397 - 2¹⁸ = 1676857125253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1676857387307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13876604 + ... + 13996922.

It is an arithmetic number, because the mean of its divisors is an integer number (108530565120).

Almost surely, 2^{1676857387397} is an apocalyptic number.

It is an amenable number.

1676857387397 is a deficient number, since it is larger than the sum of its proper divisors (59631654523).

1676857387397 is a wasteful number, since it uses less digits than its factorization.

1676857387397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121784.

The product of its digits is 2240421120, while the sum is 77.

The spelling of 1676857387397 in words is "one trillion, six hundred seventy-six billion, eight hundred fifty-seven million, three hundred eighty-seven thousand, three hundred ninety-seven".