61294063989 has 8 divisors (see below), whose sum is σ = 81761863392. Its totient is φ = 40844486960.

The previous prime is 61294063891. The next prime is 61294063991. The reversal of 61294063989 is 98936049216.

It is a happy number.

61294063989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61294063989 - 2¹⁹ = 61293539701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61294061989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4547742 + ... + 4561199.

It is an arithmetic number, because the mean of its divisors is an integer number (10220232924).

Almost surely, 2^61294063989 is an apocalyptic number.

It is an amenable number.

61294063989 is a deficient number, since it is larger than the sum of its proper divisors (20467799403).

61294063989 is a wasteful number, since it uses less digits than its factorization.

61294063989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111187.

The product of its (nonzero) digits is 5038848, while the sum is 57.

The spelling of 61294063989 in words is "sixty-one billion, two hundred ninety-four million, sixty-three thousand, nine hundred eighty-nine".