61242585400064 has 18 divisors (see below), whose sum is σ = 122245941951420. Its totient is φ = 30621292699904.

The previous prime is 61242585399967. The next prime is 61242585400067. The reversal of 61242585400064 is 46000458524216.

It is a junction number, because it is equal to n+sod(n) for n = 61242585399991 and 61242585400018.

It is not an unprimeable number, because it can be changed into a prime (61242585400067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119614424354 + ... + 119614424865.

Almost surely, 2^{61242585400064} is an apocalyptic number.

61242585400064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61242585400064 is a deficient number, since it is larger than the sum of its proper divisors (61003356551356).

61242585400064 is an equidigital number, since it uses as much as digits as its factorization.

61242585400064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239228849235 (or 239228849221 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 61242585400064 in words is "sixty-one trillion, two hundred forty-two billion, five hundred eighty-five million, four hundred thousand, sixty-four".