61973889889213 has 8 divisors (see below), whose sum is σ = 62308859348736. Its totient is φ = 61639429891200.

The previous prime is 61973889889207. The next prime is 61973889889231. The reversal of 61973889889213 is 31298898837916.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61973889889213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61973889889283) 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, 127121428 + ... + 127608013.

It is an arithmetic number, because the mean of its divisors is an integer number (7788607418592).

Almost surely, 2^{61973889889213} is an apocalyptic number.

It is an amenable number.

61973889889213 is a deficient number, since it is larger than the sum of its proper divisors (334969459523).

61973889889213 is a wasteful number, since it uses less digits than its factorization.

61973889889213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254730755.

The product of its digits is 2257403904, while the sum is 82.

The spelling of 61973889889213 in words is "sixty-one trillion, nine hundred seventy-three billion, eight hundred eighty-nine million, eight hundred eighty-nine thousand, two hundred thirteen".