61676729104 has 45 divisors (see below), whose sum is σ = 122187780021. Its totient is φ = 30159381120.

The previous prime is 61676729089. The next prime is 61676729119. The reversal of 61676729104 is 40192767616.

The square root of 61676729104 is 248348.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (61676729089) and next prime (61676729119).

It can be written as a sum of positive squares in only one way, i.e., 57096146704 + 4580582400 = 238948^2 + 67680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46688764 + ... + 46690084.

Almost surely, 2^61676729104 is an apocalyptic number.

61676729104 is the 248348-th square number.

It is an amenable number.

61676729104 is a deficient number, since it is larger than the sum of its proper divisors (60511050917).

61676729104 is an frugal number, since it uses more digits than its factorization.

61676729104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

Multiplying 61676729104 by its sum of digits (49), we get a square (3022159726096 = 1738436²).

The spelling of 61676729104 in words is "sixty-one billion, six hundred seventy-six million, seven hundred twenty-nine thousand, one hundred four".