61284745403 has 16 divisors (see below), whose sum is σ = 72096937920. Its totient is φ = 51007297536.

The previous prime is 61284745397. The next prime is 61284745447. The reversal of 61284745403 is 30454748216.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61284745403 - 2¹² = 61284741307 is a prime.

It is a super-2 number, since 2×61284745403² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61284745603) 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 15 ways as a sum of consecutive naturals, for example, 815498 + ... + 887471.

It is an arithmetic number, because the mean of its divisors is an integer number (4506058620).

Almost surely, 2^61284745403 is an apocalyptic number.

61284745403 is a deficient number, since it is larger than the sum of its proper divisors (10812192517).

61284745403 is a wasteful number, since it uses less digits than its factorization.

61284745403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703126.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 61284745403 in words is "sixty-one billion, two hundred eighty-four million, seven hundred forty-five thousand, four hundred three".