61433818028 has 48 divisors (see below), whose sum is σ = 118522729248. Its totient is φ = 27630720000.

The previous prime is 61433818013. The next prime is 61433818073. The reversal of 61433818028 is 82081833416.

It is a super-2 number, since 2×61433818028² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a self number, because there is not a number n which added to its sum of digits gives 61433818028.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1646378 + ... + 1683278.

It is an arithmetic number, because the mean of its divisors is an integer number (2469223526).

Almost surely, 2^61433818028 is an apocalyptic number.

It is an amenable number.

61433818028 is a deficient number, since it is larger than the sum of its proper divisors (57088911220).

61433818028 is a wasteful number, since it uses less digits than its factorization.

61433818028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37314 (or 37312 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 61433818028 in words is "sixty-one billion, four hundred thirty-three million, eight hundred eighteen thousand, twenty-eight".