61359964059 has 24 divisors (see below), whose sum is σ = 84130698288. Its totient is φ = 39779061120.

The previous prime is 61359964051. The next prime is 61359964073. The reversal of 61359964059 is 95046995316.

It is a happy number.

It is not a de Polignac number, because 61359964059 - 2³ = 61359964051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61359964051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10991649 + ... + 10997229.

It is an arithmetic number, because the mean of its divisors is an integer number (3505445762).

Almost surely, 2^61359964059 is an apocalyptic number.

61359964059 is a deficient number, since it is larger than the sum of its proper divisors (22770734229).

61359964059 is a wasteful number, since it uses less digits than its factorization.

61359964059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335 (or 8298 counting only the distinct ones).

The product of its (nonzero) digits is 7873200, while the sum is 57.

The spelling of 61359964059 in words is "sixty-one billion, three hundred fifty-nine million, nine hundred sixty-four thousand, fifty-nine".