61446788121 has 8 divisors (see below), whose sum is σ = 82190806240. Its totient is φ = 40833647712.

The previous prime is 61446788119. The next prime is 61446788189. The reversal of 61446788121 is 12188764416.

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

It is not a de Polignac number, because 61446788121 - 2¹ = 61446788119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61446788321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32718331 + ... + 32720208.

It is an arithmetic number, because the mean of its divisors is an integer number (10273850780).

Almost surely, 2^61446788121 is an apocalyptic number.

It is an amenable number.

61446788121 is a deficient number, since it is larger than the sum of its proper divisors (20744018119).

61446788121 is a wasteful number, since it uses less digits than its factorization.

61446788121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65438855.

The product of its digits is 516096, while the sum is 48.

The spelling of 61446788121 in words is "sixty-one billion, four hundred forty-six million, seven hundred eighty-eight thousand, one hundred twenty-one".