61975826055 has 160 divisors (see below), whose sum is σ = 131118039360. Its totient is φ = 27610398720.

The previous prime is 61975826051. The next prime is 61975826063. The reversal of 61975826055 is 55062857916.

61975826055 is a `hidden beast` number, since 6 + 1 + 9 + 7 + 582 + 6 + 0 + 55 = 666.

It is not a de Polignac number, because 61975826055 - 2² = 61975826051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61975825992 and 61975826010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61975826051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13260199 + ... + 13264871.

It is an arithmetic number, because the mean of its divisors is an integer number (819487746).

Almost surely, 2^61975826055 is an apocalyptic number.

61975826055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61975826055 is an abundant number, since it is smaller than the sum of its proper divisors (69142213305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61975826055 is a wasteful number, since it uses less digits than its factorization.

61975826055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 61975826055 in words is "sixty-one billion, nine hundred seventy-five million, eight hundred twenty-six thousand, fifty-five".