85504618351 has 16 divisors (see below), whose sum is σ = 86625000000. Its totient is φ = 84392706816.

The previous prime is 85504618337. The next prime is 85504618373. The reversal of 85504618351 is 15381640558.

It is a cyclic number.

It is not a de Polignac number, because 85504618351 - 2⁹ = 85504617839 is a prime.

It is a super-2 number, since 2×85504618351² (a number of 23 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 (85504618151) 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, 31102525 + ... + 31105273.

It is an arithmetic number, because the mean of its divisors is an integer number (5414062500).

Almost surely, 2^85504618351 is an apocalyptic number.

85504618351 is the 156301-st nonagonal number.

85504618351 is the 130771-st centered decagonal number.

85504618351 is a deficient number, since it is larger than the sum of its proper divisors (1120381649).

85504618351 is a wasteful number, since it uses less digits than its factorization.

85504618351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 85504618351 in words is "eighty-five billion, five hundred four million, six hundred eighteen thousand, three hundred fifty-one".