1678350975 has 24 divisors (see below), whose sum is σ = 3171285120. Its totient is φ = 767245920.

The previous prime is 1678350953. The next prime is 1678350977. The reversal of 1678350975 is 5790538761.

It is not a de Polignac number, because 1678350975 - 2⁶ = 1678350911 is a prime.

It is a super-4 number, since 4×1678350975⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678350977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1597905 + ... + 1598954.

It is an arithmetic number, because the mean of its divisors is an integer number (132136880).

Almost surely, 2^1678350975 is an apocalyptic number.

1678350975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1678350975 is a deficient number, since it is larger than the sum of its proper divisors (1492934145).

1678350975 is a wasteful number, since it uses less digits than its factorization.

1678350975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196879 (or 3196874 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 51.

The square root of 1678350975 is about 40967.6820799029. The cubic root of 1678350975 is about 1188.3953078291.

The spelling of 1678350975 in words is "one billion, six hundred seventy-eight million, three hundred fifty thousand, nine hundred seventy-five".