61028127578 has 8 divisors (see below), whose sum is σ = 99864208800. Its totient is φ = 27740057980.

The previous prime is 61028127571. The next prime is 61028127581. The reversal of 61028127578 is 87572182016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61028127571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387002878 + ... + 1387002921.

It is an arithmetic number, because the mean of its divisors is an integer number (12483026100).

Almost surely, 2^61028127578 is an apocalyptic number.

61028127578 is a deficient number, since it is larger than the sum of its proper divisors (38836081222).

61028127578 is a wasteful number, since it uses less digits than its factorization.

61028127578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774005812.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 61028127578 in words is "sixty-one billion, twenty-eight million, one hundred twenty-seven thousand, five hundred seventy-eight".