61488649755 has 24 divisors (see below), whose sum is σ = 114778813968. Its totient is φ = 30271334976.

The previous prime is 61488649741. The next prime is 61488649769. The reversal of 61488649755 is 55794688416.

61488649755 is a `hidden beast` number, since 6 + 1 + 488 + 64 + 97 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (61488649741) and next prime (61488649769).

It is not a de Polignac number, because 61488649755 - 2¹¹ = 61488647707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61488649692 and 61488649701.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52553817 + ... + 52554986.

It is an arithmetic number, because the mean of its divisors is an integer number (4782450582).

Almost surely, 2^61488649755 is an apocalyptic number.

61488649755 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61488649755 is a deficient number, since it is larger than the sum of its proper divisors (53290164213).

61488649755 is a wasteful number, since it uses less digits than its factorization.

61488649755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105108827 (or 105108824 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 61488649755 in words is "sixty-one billion, four hundred eighty-eight million, six hundred forty-nine thousand, seven hundred fifty-five".