57649878137485 has 8 divisors (see below), whose sum is σ = 73249256927736. Its totient is φ = 43406967068160.

The previous prime is 57649878137461. The next prime is 57649878137507. The reversal of 57649878137485 is 58473187894675.

57649878137485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15485193025129 + 42164685112356 = 3935123^2 + 6493434^2 .

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

It is not a de Polignac number, because 57649878137485 - 2⁴³ = 48853785115277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57649878137399 and 57649878137408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339116930136 + ... + 339116930305.

It is an arithmetic number, because the mean of its divisors is an integer number (9156157115967).

Almost surely, 2^{57649878137485} is an apocalyptic number.

It is an amenable number.

57649878137485 is a deficient number, since it is larger than the sum of its proper divisors (15599378790251).

57649878137485 is a wasteful number, since it uses less digits than its factorization.

57649878137485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678233860463.

The product of its digits is 11379916800, while the sum is 82.

The spelling of 57649878137485 in words is "fifty-seven trillion, six hundred forty-nine billion, eight hundred seventy-eight million, one hundred thirty-seven thousand, four hundred eighty-five".