6454877742581 has 8 divisors (see below), whose sum is σ = 6458142154464. Its totient is φ = 6451613555760.

The previous prime is 6454877742527. The next prime is 6454877742647. The reversal of 6454877742581 is 1852477784546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6454877742581 - 2⁶ = 6454877742517 is a prime.

It is a super-2 number, since 2×6454877742581² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454871742581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108559646 + ... + 108619088.

It is an arithmetic number, because the mean of its divisors is an integer number (807267769308).

Almost surely, 2^{6454877742581} is an apocalyptic number.

It is an amenable number.

6454877742581 is a deficient number, since it is larger than the sum of its proper divisors (3264411883).

6454877742581 is a wasteful number, since it uses less digits than its factorization.

6454877742581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112531.

The product of its digits is 421478400, while the sum is 68.

The spelling of 6454877742581 in words is "six trillion, four hundred fifty-four billion, eight hundred seventy-seven million, seven hundred forty-two thousand, five hundred eighty-one".