53774360640 has 1344 divisors, whose sum is σ = 259456684032. Its totient is φ = 9853747200.

The previous prime is 53774360623. The next prime is 53774360641. The reversal of 53774360640 is 4606347735.

53774360640 is a `hidden beast` number, since 5 + 37 + 7 + 4 + 3 + 606 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (53774360641) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 66305835 + ... + 66306645.

It is an arithmetic number, because the mean of its divisors is an integer number (193048128).

Almost surely, 2^53774360640 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 53774360640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129728342016).

53774360640 is an abundant number, since it is smaller than the sum of its proper divisors (205682323392).

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

53774360640 is a wasteful number, since it uses less digits than its factorization.

53774360640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 45.

It can be divided in two parts, 53774 and 360640, that added together give a palindrome (414414).

The spelling of 53774360640 in words is "fifty-three billion, seven hundred seventy-four million, three hundred sixty thousand, six hundred forty".