53767800018408 has 160 divisors (see below), whose sum is σ = 157121586338400. Its totient is φ = 15332039017344.

The previous prime is 53767800018377. The next prime is 53767800018437. The reversal of 53767800018408 is 80481000876735.

It is a Cunningham number, because it is equal to 7332653²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28414035 + ... + 30247197.

It is an arithmetic number, because the mean of its divisors is an integer number (982009914615).

Almost surely, 2^{53767800018408} 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 53767800018408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78560793169200).

53767800018408 is an abundant number, since it is smaller than the sum of its proper divisors (103353786319992).

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

53767800018408 is a wasteful number, since it uses less digits than its factorization.

53767800018408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833709 (or 1833684 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 53767800018408 in words is "fifty-three trillion, seven hundred sixty-seven billion, eight hundred million, eighteen thousand, four hundred eight".