541699280640 has 540 divisors, whose sum is σ = 2254777226856. Its totient is φ = 123815817216.

The previous prime is 541699280599. The next prime is 541699280641. The reversal of 541699280640 is 46082996145.

541699280640 is a `hidden beast` number, since 5 + 416 + 9 + 92 + 80 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (540).

It is a super-2 number, since 2×541699280640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541699280641) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5027007 + ... + 5133633.

Almost surely, 2^541699280640 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 541699280640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127388613428).

541699280640 is an abundant number, since it is smaller than the sum of its proper divisors (1713077946216).

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

541699280640 is a wasteful number, since it uses less digits than its factorization.

541699280640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106674 (or 106644 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 541699280640 in words is "five hundred forty-one billion, six hundred ninety-nine million, two hundred eighty thousand, six hundred forty".