487287505251 has 24 divisors (see below), whose sum is σ = 717037601280. Its totient is φ = 318825492336.

The previous prime is 487287505247. The next prime is 487287505261. The reversal of 487287505251 is 152505782784.

It is a happy number.

487287505251 is a `hidden beast` number, since 4 + 8 + 7 + 2 + 87 + 505 + 2 + 51 = 666.

It is not a de Polignac number, because 487287505251 - 2² = 487287505247 is a prime.

It is a super-2 number, since 2×487287505251² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (487287505231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1933225 + ... + 2170698.

It is an arithmetic number, because the mean of its divisors is an integer number (29876566720).

Almost surely, 2^487287505251 is an apocalyptic number.

487287505251 is a deficient number, since it is larger than the sum of its proper divisors (229750096029).

487287505251 is a wasteful number, since it uses less digits than its factorization.

487287505251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104175 (or 4104172 counting only the distinct ones).

The product of its (nonzero) digits is 6272000, while the sum is 54.

The spelling of 487287505251 in words is "four hundred eighty-seven billion, two hundred eighty-seven million, five hundred five thousand, two hundred fifty-one".