487178120690 has 8 divisors (see below), whose sum is σ = 876920617260. Its totient is φ = 194871248272.

The previous prime is 487178120609. The next prime is 487178120713. The reversal of 487178120690 is 96021871784.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 464650812409 + 22527308281 = 681653^2 + 150091^2 .

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

It is a super-2 number, since 2×487178120690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24358906025 + ... + 24358906044.

Almost surely, 2^487178120690 is an apocalyptic number.

487178120690 is a deficient number, since it is larger than the sum of its proper divisors (389742496570).

487178120690 is a wasteful number, since it uses less digits than its factorization.

487178120690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48717812076.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 487178120690 in words is "four hundred eighty-seven billion, one hundred seventy-eight million, one hundred twenty thousand, six hundred ninety".