57764397887 has 6 divisors (see below), whose sum is σ = 67195320048. Its totient is φ = 49512341004.

The previous prime is 57764397877. The next prime is 57764397893. The reversal of 57764397887 is 78879346775.

It is not a de Polignac number, because 57764397887 - 2¹⁸ = 57764135743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57764397887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57764397877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 589432583 + ... + 589432680.

It is an arithmetic number, because the mean of its divisors is an integer number (11199220008).

Almost surely, 2^57764397887 is an apocalyptic number.

57764397887 is a deficient number, since it is larger than the sum of its proper divisors (9430922161).

57764397887 is a wasteful number, since it uses less digits than its factorization.

57764397887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178865277 (or 1178865270 counting only the distinct ones).

The product of its digits is 497871360, while the sum is 71.

The spelling of 57764397887 in words is "fifty-seven billion, seven hundred sixty-four million, three hundred ninety-seven thousand, eight hundred eighty-seven".