61481101252 has 24 divisors (see below), whose sum is σ = 109109669760. Its totient is φ = 30308023200.

The previous prime is 61481101219. The next prime is 61481101267. The reversal of 61481101252 is 25210118416.

It is a super-2 number, since 2×61481101252² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82743 + ... + 360289.

It is an arithmetic number, because the mean of its divisors is an integer number (4546236240).

Almost surely, 2^61481101252 is an apocalyptic number.

It is an amenable number.

61481101252 is a deficient number, since it is larger than the sum of its proper divisors (47628568508).

61481101252 is a wasteful number, since it uses less digits than its factorization.

61481101252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278331 (or 278329 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

Adding to 61481101252 its reverse (25210118416), we get a palindrome (86691219668).

The spelling of 61481101252 in words is "sixty-one billion, four hundred eighty-one million, one hundred one thousand, two hundred fifty-two".