57057836783621 has 12 divisors (see below), whose sum is σ = 60632607641568. Its totient is φ = 53682891517632.

The previous prime is 57057836783603. The next prime is 57057836783639. The reversal of 57057836783621 is 12638763875075.

It is an interprime number because it is at equal distance from previous prime (57057836783603) and next prime (57057836783639).

It is not a de Polignac number, because 57057836783621 - 2⁶ = 57057836783557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57057836783221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33358931 + ... + 35027616.

It is an arithmetic number, because the mean of its divisors is an integer number (5052717303464).

Almost surely, 2^{57057836783621} is an apocalyptic number.

It is an amenable number.

57057836783621 is a deficient number, since it is larger than the sum of its proper divisors (3574770857947).

57057836783621 is a wasteful number, since it uses less digits than its factorization.

57057836783621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68389468 (or 68389451 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 68.

The spelling of 57057836783621 in words is "fifty-seven trillion, fifty-seven billion, eight hundred thirty-six million, seven hundred eighty-three thousand, six hundred twenty-one".