61440334252 has 12 divisors (see below), whose sum is σ = 117295183656. Its totient is φ = 27927424640.

The previous prime is 61440334169. The next prime is 61440334261. The reversal of 61440334252 is 25243304416.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698185573 + ... + 698185660.

It is an arithmetic number, because the mean of its divisors is an integer number (9774598638).

Almost surely, 2^61440334252 is an apocalyptic number.

It is an amenable number.

61440334252 is a deficient number, since it is larger than the sum of its proper divisors (55854849404).

61440334252 is a wasteful number, since it uses less digits than its factorization.

61440334252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396371248 (or 1396371246 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 61440334252 its reverse (25243304416), we get a palindrome (86683638668).

The spelling of 61440334252 in words is "sixty-one billion, four hundred forty million, three hundred thirty-four thousand, two hundred fifty-two".