63857562484 has 12 divisors (see below), whose sum is σ = 114476362308. Its totient is φ = 31150030400.

The previous prime is 63857562421. The next prime is 63857562487. The reversal of 63857562484 is 48426575836.

It can be written as a sum of positive squares in 2 ways, for example, as 3133760400 + 60723802084 = 55980^2 + 246422^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63857562487) 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, 194687527 + ... + 194687854.

It is an arithmetic number, because the mean of its divisors is an integer number (9539696859).

Almost surely, 2^63857562484 is an apocalyptic number.

It is an amenable number.

63857562484 is a deficient number, since it is larger than the sum of its proper divisors (50618799824).

63857562484 is a wasteful number, since it uses less digits than its factorization.

63857562484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389375426 (or 389375424 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 58.

The spelling of 63857562484 in words is "sixty-three billion, eight hundred fifty-seven million, five hundred sixty-two thousand, four hundred eighty-four".