1678860634 has 32 divisors (see below), whose sum is σ = 2991556800. Its totient is φ = 698019840.

The previous prime is 1678860611. The next prime is 1678860637. The reversal of 1678860634 is 4360688761.

It is not an unprimeable number, because it can be changed into a prime (1678860637) 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, 57127 + ... + 81370.

It is an arithmetic number, because the mean of its divisors is an integer number (93486150).

Almost surely, 2^1678860634 is an apocalyptic number.

1678860634 is a deficient number, since it is larger than the sum of its proper divisors (1312696166).

1678860634 is a wasteful number, since it uses less digits than its factorization.

1678860634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138558.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 1678860634 is about 40973.9018644795. The cubic root of 1678860634 is about 1188.5155876108.

The spelling of 1678860634 in words is "one billion, six hundred seventy-eight million, eight hundred sixty thousand, six hundred thirty-four".