61829568259684 has 9 divisors (see below), whose sum is σ = 108201771975577. Its totient is φ = 30914776266664.

The previous prime is 61829568259601. The next prime is 61829568259691. The reversal of 61829568259684 is 48695286592816.

The square root of 61829568259684 is 7863178.

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

It can be written as a sum of positive squares in only one way, i.e., 57960479259684 + 3869089000000 = 7613178^2 + 1967000^2 .

It is a super-2 number, since 2×61829568259684² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13760562 + ... + 17692150.

Almost surely, 2^{61829568259684} is an apocalyptic number.

61829568259684 is the 7863178-th square number.

It is an amenable number.

61829568259684 is a deficient number, since it is larger than the sum of its proper divisors (46372203715893).

61829568259684 is an frugal number, since it uses more digits than its factorization.

61829568259684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863182 (or 3931591 counting only the distinct ones).

The product of its digits is 3583180800, while the sum is 79.

The spelling of 61829568259684 in words is "sixty-one trillion, eight hundred twenty-nine billion, five hundred sixty-eight million, two hundred fifty-nine thousand, six hundred eighty-four".