61397082371 has 8 divisors (see below), whose sum is σ = 61787436240. Its totient is φ = 61006895712.

The previous prime is 61397082323. The next prime is 61397082389. The reversal of 61397082371 is 17328079316.

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-61397082371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61397082871) 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, 741281 + ... + 819933.

It is an arithmetic number, because the mean of its divisors is an integer number (7723429530).

Almost surely, 2^61397082371 is an apocalyptic number.

61397082371 is a deficient number, since it is larger than the sum of its proper divisors (390353869).

61397082371 is a wasteful number, since it uses less digits than its factorization.

61397082371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83605.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 61397082371 in words is "sixty-one billion, three hundred ninety-seven million, eighty-two thousand, three hundred seventy-one".