61854200317 has 8 divisors (see below), whose sum is σ = 76128246656. Its totient is φ = 48939586992.

The previous prime is 61854200279. The next prime is 61854200321. The reversal of 61854200317 is 71300245816.

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-61854200317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61854200347) 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, 339858153 + ... + 339858334.

It is an arithmetic number, because the mean of its divisors is an integer number (9516030832).

Almost surely, 2^61854200317 is an apocalyptic number.

It is an amenable number.

61854200317 is a deficient number, since it is larger than the sum of its proper divisors (14274046339).

61854200317 is a wasteful number, since it uses less digits than its factorization.

61854200317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679716507.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 61854200317 in words is "sixty-one billion, eight hundred fifty-four million, two hundred thousand, three hundred seventeen".