85454702077 has 16 divisors (see below), whose sum is σ = 90825341040. Its totient is φ = 80122724352.

The previous prime is 85454702071. The next prime is 85454702147. The reversal of 85454702077 is 77020745458.

It can be written as a sum of positive squares in 8 ways, for example, as 2840996601 + 82613705476 = 53301^2 + 287426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85454702077 is a prime.

It is a super-2 number, since 2×85454702077² (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 85454702077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85454702071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6768823 + ... + 6781435.

It is an arithmetic number, because the mean of its divisors is an integer number (5676583815).

Almost surely, 2^85454702077 is an apocalyptic number.

It is an amenable number.

85454702077 is a deficient number, since it is larger than the sum of its proper divisors (5370638963).

85454702077 is a wasteful number, since it uses less digits than its factorization.

85454702077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14112.

The product of its (nonzero) digits is 2195200, while the sum is 49.

The spelling of 85454702077 in words is "eighty-five billion, four hundred fifty-four million, seven hundred two thousand, seventy-seven".