675685020381 has 16 divisors (see below), whose sum is σ = 1030578460800. Its totient is φ = 385744529088.

The previous prime is 675685020377. The next prime is 675685020403. The reversal of 675685020381 is 183020586576.

It is a happy number.

It is not a de Polignac number, because 675685020381 - 2² = 675685020377 is a prime.

It is a super-2 number, since 2×675685020381² (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 (675685020331) 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, 15026886 + ... + 15071783.

It is an arithmetic number, because the mean of its divisors is an integer number (64411153800).

Almost surely, 2^675685020381 is an apocalyptic number.

It is an amenable number.

675685020381 is a deficient number, since it is larger than the sum of its proper divisors (354893440419).

675685020381 is a wasteful number, since it uses less digits than its factorization.

675685020381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30099748.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 675685020381 in words is "six hundred seventy-five billion, six hundred eighty-five million, twenty thousand, three hundred eighty-one".