61144312036 has 12 divisors (see below), whose sum is σ = 107023892220. Its totient is φ = 30566057120.

The previous prime is 61144311967. The next prime is 61144312147. The reversal of 61144312036 is 63021344116.

It is a happy number.

61144312036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56266686436 + 4877625600 = 237206^2 + 69840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61144311989 and 61144312007.

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, 1502131 + ... + 1542298.

It is an arithmetic number, because the mean of its divisors is an integer number (8918657685).

Almost surely, 2^61144312036 is an apocalyptic number.

It is an amenable number.

61144312036 is a deficient number, since it is larger than the sum of its proper divisors (45879580184).

61144312036 is a wasteful number, since it uses less digits than its factorization.

61144312036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049454 (or 3049452 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 61144312036 in words is "sixty-one billion, one hundred forty-four million, three hundred twelve thousand, thirty-six".