61180028472 has 16 divisors (see below), whose sum is σ = 152950071240. Its totient is φ = 20393342816.

The previous prime is 61180028449. The next prime is 61180028473. The reversal of 61180028472 is 27482008116.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61180028472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61180028473) 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 3 ways as a sum of consecutive naturals, for example, 1274583903 + ... + 1274583950.

Almost surely, 2^61180028472 is an apocalyptic number.

It is an amenable number.

61180028472 is an abundant number, since it is smaller than the sum of its proper divisors (91770042768).

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

61180028472 is a wasteful number, since it uses less digits than its factorization.

61180028472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549167862 (or 2549167858 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 61180028472 in words is "sixty-one billion, one hundred eighty million, twenty-eight thousand, four hundred seventy-two".