84696618757 has 4 divisors (see below), whose sum is σ = 84897798796. Its totient is φ = 84495438720.

The previous prime is 84696618703. The next prime is 84696618781. The reversal of 84696618757 is 75781669648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21499183876 + 63197434881 = 146626^2 + 251391^2 .

It is a cyclic number.

It is not a de Polignac number, because 84696618757 - 2²⁷ = 84562401029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84696618692 and 84696618701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84696618857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100589388 + ... + 100590229.

It is an arithmetic number, because the mean of its divisors is an integer number (21224449699).

Almost surely, 2^84696618757 is an apocalyptic number.

It is an amenable number.

84696618757 is a deficient number, since it is larger than the sum of its proper divisors (201180039).

84696618757 is a wasteful number, since it uses less digits than its factorization.

84696618757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201180038.

The product of its digits is 121927680, while the sum is 67.

The spelling of 84696618757 in words is "eighty-four billion, six hundred ninety-six million, six hundred eighteen thousand, seven hundred fifty-seven".