6354668544 has 176 divisors, whose sum is σ = 20496987648. Its totient is φ = 1708720128.

The previous prime is 6354668519. The next prime is 6354668549. The reversal of 6354668544 is 4458664536.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (6354668549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356877 + ... + 374259.

Almost surely, 2^6354668544 is an apocalyptic number.

6354668544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6354668544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10248493824).

6354668544 is an abundant number, since it is smaller than the sum of its proper divisors (14142319104).

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

6354668544 is a wasteful number, since it uses less digits than its factorization.

6354668544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430 (or 17412 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 51.

The square root of 6354668544 is about 79716.1749207775. The cubic root of 6354668544 is about 1852.2416016770.

The spelling of 6354668544 in words is "six billion, three hundred fifty-four million, six hundred sixty-eight thousand, five hundred forty-four".