53423450646 has 16 divisors (see below), whose sum is σ = 106874295744. Its totient is φ = 17803251144.

The previous prime is 53423450611. The next prime is 53423450671. The reversal of 53423450646 is 64605432435.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53423450598 and 53423450607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116040 + ... + 1162923.

It is an arithmetic number, because the mean of its divisors is an integer number (6679643484).

Almost surely, 2^53423450646 is an apocalyptic number.

53423450646 is an abundant number, since it is smaller than the sum of its proper divisors (53450845098).

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

53423450646 is a wasteful number, since it uses less digits than its factorization.

53423450646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282875.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 53423450646 in words is "fifty-three billion, four hundred twenty-three million, four hundred fifty thousand, six hundred forty-six".