420523115544554 has 32 divisors (see below), whose sum is σ = 738587811805056. Its totient is φ = 177438513323520.

The previous prime is 420523115544509. The next prime is 420523115544559. The reversal of 420523115544554 is 455445511325024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420523115544559) 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, 7701297062 + ... + 7701351665.

It is an arithmetic number, because the mean of its divisors is an integer number (23080869118908).

Almost surely, 2^{420523115544554} is an apocalyptic number.

420523115544554 is a deficient number, since it is larger than the sum of its proper divisors (318064696260502).

420523115544554 is a wasteful number, since it uses less digits than its factorization.

420523115544554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402648830.

The product of its (nonzero) digits is 9600000, while the sum is 50.

Adding to 420523115544554 its reverse (455445511325024), we get a palindrome (875968626869578).

The spelling of 420523115544554 in words is "four hundred twenty trillion, five hundred twenty-three billion, one hundred fifteen million, five hundred forty-four thousand, five hundred fifty-four".