63554421892 has 36 divisors (see below), whose sum is σ = 121787052660. Its totient is φ = 29003200512.

The previous prime is 63554421883. The next prime is 63554421899. The reversal of 63554421892 is 29812445536.

It can be written as a sum of positive squares in 6 ways, for example, as 22723753536 + 40830668356 = 150744^2 + 202066^2 .

It is not an unprimeable number, because it can be changed into a prime (63554421899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468013 + ... + 588340.

It is an arithmetic number, because the mean of its divisors is an integer number (3382973685).

Almost surely, 2^63554421892 is an apocalyptic number.

It is an amenable number.

63554421892 is a deficient number, since it is larger than the sum of its proper divisors (58232630768).

63554421892 is a wasteful number, since it uses less digits than its factorization.

63554421892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056472 (or 1056457 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 49.

The spelling of 63554421892 in words is "sixty-three billion, five hundred fifty-four million, four hundred twenty-one thousand, eight hundred ninety-two".