61282763663 has 16 divisors (see below), whose sum is σ = 69805618560. Its totient is φ = 53287768800.

The previous prime is 61282763629. The next prime is 61282763669. The reversal of 61282763663 is 36636728216.

It is a cyclic number.

It is not a de Polignac number, because 61282763663 - 2²⁴ = 61265986447 is a prime.

It is a super-2 number, since 2×61282763663² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61282763669) 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 in 15 ways as a sum of consecutive naturals, for example, 863573 + ... + 931838.

It is an arithmetic number, because the mean of its divisors is an integer number (4362851160).

Almost surely, 2^61282763663 is an apocalyptic number.

61282763663 is a deficient number, since it is larger than the sum of its proper divisors (8522854897).

61282763663 is a wasteful number, since it uses less digits than its factorization.

61282763663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795558.

The product of its digits is 2612736, while the sum is 50.

The spelling of 61282763663 in words is "sixty-one billion, two hundred eighty-two million, seven hundred sixty-three thousand, six hundred sixty-three".