503250420978 has 96 divisors (see below), whose sum is σ = 1203941007360. Its totient is φ = 151215245280.

The previous prime is 503250420931. The next prime is 503250420979. The reversal of 503250420978 is 879024052305.

503250420978 is a `hidden beast` number, since 5 + 0 + 32 + 504 + 20 + 97 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (503250420979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1334925 + ... + 1669887.

It is an arithmetic number, because the mean of its divisors is an integer number (12541052160).

Almost surely, 2^503250420978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503250420978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601970503680).

503250420978 is an abundant number, since it is smaller than the sum of its proper divisors (700690586382).

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

503250420978 is a wasteful number, since it uses less digits than its factorization.

503250420978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335204 (or 335201 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 503250420978 in words is "five hundred three billion, two hundred fifty million, four hundred twenty thousand, nine hundred seventy-eight".