61463616489 has 12 divisors (see below), whose sum is σ = 96851759472. Its totient is φ = 37250676600.

The previous prime is 61463616413. The next prime is 61463616499. The reversal of 61463616489 is 98461636416.

61463616489 is a `hidden beast` number, since 6 + 14 + 6 + 3 + 616 + 4 + 8 + 9 = 666.

It is not a de Polignac number, because 61463616489 - 2¹¹ = 61463614441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61463616499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310422207 + ... + 310422404.

It is an arithmetic number, because the mean of its divisors is an integer number (8070979956).

Almost surely, 2^61463616489 is an apocalyptic number.

It is an amenable number.

61463616489 is a deficient number, since it is larger than the sum of its proper divisors (35388142983).

61463616489 is a wasteful number, since it uses less digits than its factorization.

61463616489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620844628 (or 620844625 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 61463616489 in words is "sixty-one billion, four hundred sixty-three million, six hundred sixteen thousand, four hundred eighty-nine".