61834566723 has 8 divisors (see below), whose sum is σ = 82759573248. Its totient is φ = 41066302344.

The previous prime is 61834566719. The next prime is 61834566737. The reversal of 61834566723 is 32766543816.

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

It is not a de Polignac number, because 61834566723 - 2² = 61834566719 is a prime.

It is a super-2 number, since 2×61834566723² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61834566763) 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, 39184615 + ... + 39186192.

It is an arithmetic number, because the mean of its divisors is an integer number (10344946656).

Almost surely, 2^61834566723 is an apocalyptic number.

61834566723 is a deficient number, since it is larger than the sum of its proper divisors (20925006525).

61834566723 is a wasteful number, since it uses less digits than its factorization.

61834566723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78371073.

The product of its digits is 4354560, while the sum is 51.

The spelling of 61834566723 in words is "sixty-one billion, eight hundred thirty-four million, five hundred sixty-six thousand, seven hundred twenty-three".