57123420365 has 16 divisors (see below), whose sum is σ = 74785139136. Its totient is φ = 41541312000.

The previous prime is 57123420329. The next prime is 57123420373. The reversal of 57123420365 is 56302432175.

57123420365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57123420365 - 2¹⁰ = 57123419341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983834 + ... + 1040276.

It is an arithmetic number, because the mean of its divisors is an integer number (4674071196).

Almost surely, 2^57123420365 is an apocalyptic number.

57123420365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57123420365 is a deficient number, since it is larger than the sum of its proper divisors (17661718771).

57123420365 is a wasteful number, since it uses less digits than its factorization.

57123420365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74860.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 57123420365 in words is "fifty-seven billion, one hundred twenty-three million, four hundred twenty thousand, three hundred sixty-five".