912861869487 has 8 divisors (see below), whose sum is σ = 1228524385536. Its totient is φ = 602886966552.

The previous prime is 912861869401. The next prime is 912861869509. The reversal of 912861869487 is 784968168219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 912861869487 - 2¹⁶ = 912861803951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912861868487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421902903 + ... + 1421903544.

It is an arithmetic number, because the mean of its divisors is an integer number (153565548192).

Almost surely, 2^912861869487 is an apocalyptic number.

912861869487 is a deficient number, since it is larger than the sum of its proper divisors (315662516049).

912861869487 is a wasteful number, since it uses less digits than its factorization.

912861869487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843806557.

The product of its digits is 83607552, while the sum is 69.

It can be divided in two parts, 912861869 and 487, that added together give a triangular number (912862356 = T₄₂₇₂₈).

The spelling of 912861869487 in words is "nine hundred twelve billion, eight hundred sixty-one million, eight hundred sixty-nine thousand, four hundred eighty-seven".