61679308438 has 16 divisors (see below), whose sum is σ = 106866823824. Its totient is φ = 26386869760.

The previous prime is 61679308373. The next prime is 61679308477. The reversal of 61679308438 is 83480397616.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82458595 + ... + 82459342.

It is an arithmetic number, because the mean of its divisors is an integer number (6679176489).

Almost surely, 2^61679308438 is an apocalyptic number.

61679308438 is a deficient number, since it is larger than the sum of its proper divisors (45187515386).

61679308438 is a wasteful number, since it uses less digits than its factorization.

61679308438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164917967.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 61679308438 in words is "sixty-one billion, six hundred seventy-nine million, three hundred eight thousand, four hundred thirty-eight".