57782063641 has 3 divisors (see below), whose sum is σ = 57782304021. Its totient is φ = 57781823262.

The previous prime is 57782063621. The next prime is 57782063653. The reversal of 57782063641 is 14636028775.

The square root of 57782063641 is 240379.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 57782063641 - 2¹³ = 57782055449 is a prime.

It is a super-2 number, since 2×57782063641² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57782063621) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 120190 + ... + 360568.

It is an arithmetic number, because the mean of its divisors is an integer number (19260768007).

Almost surely, 2^57782063641 is an apocalyptic number.

57782063641 is the 240379-th square number.

57782063641 is the 120190-th centered octagonal number.

It is an amenable number.

57782063641 is a deficient number, since it is larger than the sum of its proper divisors (240380).

57782063641 is an frugal number, since it uses more digits than its factorization.

57782063641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480758 (or 240379 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

Multiplying 57782063641 by its sum of digits (49), we get a square (2831321118409 = 1682653²).

The spelling of 57782063641 in words is "fifty-seven billion, seven hundred eighty-two million, sixty-three thousand, six hundred forty-one".