53417349778 has 24 divisors (see below), whose sum is σ = 91070166348. Its totient is φ = 23356569888.

The previous prime is 53417349767. The next prime is 53417349781. The reversal of 53417349778 is 87794371435.

It is a happy number.

53417349778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47850250009 + 5567099769 = 218747^2 + 74613^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2836201 + ... + 2854972.

Almost surely, 2^53417349778 is an apocalyptic number.

53417349778 is a deficient number, since it is larger than the sum of its proper divisors (37652816570).

53417349778 is a wasteful number, since it uses less digits than its factorization.

53417349778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691226 (or 5691207 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 58.

The spelling of 53417349778 in words is "fifty-three billion, four hundred seventeen million, three hundred forty-nine thousand, seven hundred seventy-eight".