57615726243 has 4 divisors (see below), whose sum is σ = 76820968328. Its totient is φ = 38410484160.

The previous prime is 57615726221. The next prime is 57615726253. The reversal of 57615726243 is 34262751675.

57615726243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57615726243 - 2⁵ = 57615726211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57615726192 and 57615726201.

It is not an unprimeable number, because it can be changed into a prime (57615726253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9602621038 + ... + 9602621043.

It is an arithmetic number, because the mean of its divisors is an integer number (19205242082).

Almost surely, 2^57615726243 is an apocalyptic number.

57615726243 is a deficient number, since it is larger than the sum of its proper divisors (19205242085).

57615726243 is a wasteful number, since it uses less digits than its factorization.

57615726243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19205242084.

The product of its digits is 2116800, while the sum is 48.

The spelling of 57615726243 in words is "fifty-seven billion, six hundred fifteen million, seven hundred twenty-six thousand, two hundred forty-three".