61003343730 has 64 divisors (see below), whose sum is σ = 167373796608. Its totient is φ = 13939426560.

The previous prime is 61003343659. The next prime is 61003343771. The reversal of 61003343730 is 3734330016.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 684844 + ... + 768776.

It is an arithmetic number, because the mean of its divisors is an integer number (2615215572).

Almost surely, 2^61003343730 is an apocalyptic number.

61003343730 is an abundant number, since it is smaller than the sum of its proper divisors (106370452878).

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

61003343730 is a wasteful number, since it uses less digits than its factorization.

61003343730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87411.

The product of its (nonzero) digits is 13608, while the sum is 30.

Adding to 61003343730 its reverse (3734330016), we get a palindrome (64737673746).

The spelling of 61003343730 in words is "sixty-one billion, three million, three hundred forty-three thousand, seven hundred thirty".