520391400798 has 128 divisors (see below), whose sum is σ = 1124501253120. Its totient is φ = 160210068480.

The previous prime is 520391400797. The next prime is 520391400857. The reversal of 520391400798 is 897004193025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520391400797) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163079383 + ... + 163082573.

It is an arithmetic number, because the mean of its divisors is an integer number (8785166040).

Almost surely, 2^520391400798 is an apocalyptic number.

520391400798 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

520391400798 is an abundant number, since it is smaller than the sum of its proper divisors (604109852322).

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

520391400798 is a wasteful number, since it uses less digits than its factorization.

520391400798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 520391400798 in words is "five hundred twenty billion, three hundred ninety-one million, four hundred thousand, seven hundred ninety-eight".