61728338950 has 24 divisors (see below), whose sum is σ = 115161613560. Its totient is φ = 24616732800.

The previous prime is 61728338921. The next prime is 61728338957. The reversal of 61728338950 is 5983382716.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61728338957) 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 11 ways as a sum of consecutive naturals, for example, 1848355 + ... + 1881454.

It is an arithmetic number, because the mean of its divisors is an integer number (4798400565).

Almost surely, 2^61728338950 is an apocalyptic number.

61728338950 is a deficient number, since it is larger than the sum of its proper divisors (53433274610).

61728338950 is a wasteful number, since it uses less digits than its factorization.

61728338950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730152 (or 3730147 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 61728338950 in words is "sixty-one billion, seven hundred twenty-eight million, three hundred thirty-eight thousand, nine hundred fifty".