61648481347579 has 16 divisors (see below), whose sum is σ = 70699862464000. Its totient is φ = 52658286888384.

The previous prime is 61648481347547. The next prime is 61648481347613. The reversal of 61648481347579 is 97574318484616.

It is a cyclic number.

It is not a de Polignac number, because 61648481347579 - 2⁵ = 61648481347547 is a prime.

It is a super-4 number, since 4×61648481347579⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (61648481347279) 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, 7129522 + ... + 13195720.

It is an arithmetic number, because the mean of its divisors is an integer number (4418741404000).

Almost surely, 2^{61648481347579} is an apocalyptic number.

61648481347579 is a deficient number, since it is larger than the sum of its proper divisors (9051381116421).

61648481347579 is a wasteful number, since it uses less digits than its factorization.

61648481347579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071242.

The product of its digits is 975421440, while the sum is 73.

The spelling of 61648481347579 in words is "sixty-one trillion, six hundred forty-eight billion, four hundred eighty-one million, three hundred forty-seven thousand, five hundred seventy-nine".