53465067864 has 384 divisors, whose sum is σ = 173696140800. Its totient is φ = 14689382400.

The previous prime is 53465067863. The next prime is 53465067883. The reversal of 53465067864 is 46876056435.

53465067864 is a `hidden beast` number, since 5 + 3 + 4 + 6 + 506 + 78 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53465067864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53465067863) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50870139 + ... + 50871189.

It is an arithmetic number, because the mean of its divisors is an integer number (452333700).

Almost surely, 2^53465067864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53465067864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86848070400).

53465067864 is an abundant number, since it is smaller than the sum of its proper divisors (120231072936).

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

53465067864 is a wasteful number, since it uses less digits than its factorization.

53465067864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 53465067864 in words is "fifty-three billion, four hundred sixty-five million, sixty-seven thousand, eight hundred sixty-four".