61905836101823 has 8 divisors (see below), whose sum is σ = 70750837315200. Its totient is φ = 53061162473880.

The previous prime is 61905836101793. The next prime is 61905836101831. The reversal of 61905836101823 is 32810163850916.

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 not a de Polignac number, because 61905836101823 - 2⁸ = 61905836101567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61905836101423) 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, 81491273 + ... + 82247426.

It is an arithmetic number, because the mean of its divisors is an integer number (8843854664400).

Almost surely, 2^{61905836101823} is an apocalyptic number.

61905836101823 is a deficient number, since it is larger than the sum of its proper divisors (8845001213377).

61905836101823 is a wasteful number, since it uses less digits than its factorization.

61905836101823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163792717.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 61905836101823 in words is "sixty-one trillion, nine hundred five billion, eight hundred thirty-six million, one hundred one thousand, eight hundred twenty-three".