61328576755 has 4 divisors (see below), whose sum is σ = 73594292112. Its totient is φ = 49062861400.

The previous prime is 61328576723. The next prime is 61328576773. The reversal of 61328576755 is 55767582316.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61328576755 - 2⁵ = 61328576723 is a prime.

It is a super-2 number, since 2×61328576755² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61328576696 and 61328576705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6132857671 + ... + 6132857680.

It is an arithmetic number, because the mean of its divisors is an integer number (18398573028).

Almost surely, 2^61328576755 is an apocalyptic number.

61328576755 is a deficient number, since it is larger than the sum of its proper divisors (12265715357).

61328576755 is a wasteful number, since it uses less digits than its factorization.

61328576755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12265715356.

The product of its digits is 10584000, while the sum is 55.

The spelling of 61328576755 in words is "sixty-one billion, three hundred twenty-eight million, five hundred seventy-six thousand, seven hundred fifty-five".