6542260572840 has 256 divisors, whose sum is σ = 20816260208640. Its totient is φ = 1642000896000.

The previous prime is 6542260572817. The next prime is 6542260572863. The reversal of 6542260572840 is 482750622456.

It is an interprime number because it is at equal distance from previous prime (6542260572817) and next prime (6542260572863).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 377262570 + ... + 377279910.

It is an arithmetic number, because the mean of its divisors is an integer number (81313516440).

Almost surely, 2^{6542260572840} is an apocalyptic number.

6542260572840 is a gapful number since it is divisible by the number (60) 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 6542260572840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10408130104320).

6542260572840 is an abundant number, since it is smaller than the sum of its proper divisors (14273999635800).

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

6542260572840 is a wasteful number, since it uses less digits than its factorization.

6542260572840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20164 (or 20160 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 6542260572840 in words is "six trillion, five hundred forty-two billion, two hundred sixty million, five hundred seventy-two thousand, eight hundred forty".