523407764543420 has 48 divisors (see below), whose sum is σ = 1101289486808448. Its totient is φ = 208957047674880.

The previous prime is 523407764543387. The next prime is 523407764543429. The reversal of 523407764543420 is 24345467704325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523407764543429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23768780 + ... + 40146860.

It is an arithmetic number, because the mean of its divisors is an integer number (22943530975176).

Almost surely, 2^{523407764543420} is an apocalyptic number.

It is an amenable number.

523407764543420 is an abundant number, since it is smaller than the sum of its proper divisors (577881722265028).

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

523407764543420 is a wasteful number, since it uses less digits than its factorization.

523407764543420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16381190 (or 16381188 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 56.

The spelling of 523407764543420 in words is "five hundred twenty-three trillion, four hundred seven billion, seven hundred sixty-four million, five hundred forty-three thousand, four hundred twenty".