63553427377 has 24 divisors (see below), whose sum is σ = 70568799840. Its totient is φ = 57188788800.

The previous prime is 63553427359. The next prime is 63553427387. The reversal of 63553427377 is 77372435536.

It is a happy number.

63553427377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-63553427377 is a prime.

It is a super-2 number, since 2×63553427377² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63553427387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6478158 + ... + 6487960.

It is an arithmetic number, because the mean of its divisors is an integer number (2940366660).

Almost surely, 2^63553427377 is an apocalyptic number.

It is an amenable number.

63553427377 is a deficient number, since it is larger than the sum of its proper divisors (7015372463).

63553427377 is a wasteful number, since it uses less digits than its factorization.

63553427377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10365 (or 10354 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 52.

The spelling of 63553427377 in words is "sixty-three billion, five hundred fifty-three million, four hundred twenty-seven thousand, three hundred seventy-seven".