487826557349 has 4 divisors (see below), whose sum is σ = 488055478560. Its totient is φ = 487597636140.

The previous prime is 487826557303. The next prime is 487826557523. The reversal of 487826557349 is 943755628784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487826557349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487826551349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114457409 + ... + 114461670.

It is an arithmetic number, because the mean of its divisors is an integer number (122013869640).

Almost surely, 2^487826557349 is an apocalyptic number.

It is an amenable number.

487826557349 is a deficient number, since it is larger than the sum of its proper divisors (228921211).

487826557349 is a wasteful number, since it uses less digits than its factorization.

487826557349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228921210.

The product of its digits is 406425600, while the sum is 68.

The spelling of 487826557349 in words is "four hundred eighty-seven billion, eight hundred twenty-six million, five hundred fifty-seven thousand, three hundred forty-nine".