84722559657 has 8 divisors (see below), whose sum is σ = 114510857184. Its totient is φ = 55707984288.

The previous prime is 84722559641. The next prime is 84722559679. The reversal of 84722559657 is 75695522748.

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

It is not a de Polignac number, because 84722559657 - 2⁴ = 84722559641 is a prime.

It is a super-2 number, since 2×84722559657² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84722559657.

It is not an unprimeable number, because it can be changed into a prime (84702559657) 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, 193430283 + ... + 193430720.

It is an arithmetic number, because the mean of its divisors is an integer number (14313857148).

Almost surely, 2^84722559657 is an apocalyptic number.

It is an amenable number.

84722559657 is a deficient number, since it is larger than the sum of its proper divisors (29788297527).

84722559657 is a wasteful number, since it uses less digits than its factorization.

84722559657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386861079.

The product of its digits is 42336000, while the sum is 60.

The spelling of 84722559657 in words is "eighty-four billion, seven hundred twenty-two million, five hundred fifty-nine thousand, six hundred fifty-seven".