487916301978 has 24 divisors (see below), whose sum is σ = 1208173700448. Its totient is φ = 139404657672.

The previous prime is 487916301931. The next prime is 487916301979. The reversal of 487916301978 is 879103619784.

487916301978 is a `hidden beast` number, since 487 + 9 + 1 + 63 + 0 + 1 + 97 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (487916301979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1936175676 + ... + 1936175927.

It is an arithmetic number, because the mean of its divisors is an integer number (50340570852).

Almost surely, 2^487916301978 is an apocalyptic number.

487916301978 is an abundant number, since it is smaller than the sum of its proper divisors (720257398470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487916301978 is a wasteful number, since it uses less digits than its factorization.

487916301978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872351618 (or 3872351615 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 487916301978 in words is "four hundred eighty-seven billion, nine hundred sixteen million, three hundred one thousand, nine hundred seventy-eight".