85618041277 has 8 divisors (see below), whose sum is σ = 87625074240. Its totient is φ = 83611731840.

The previous prime is 85618041263. The next prime is 85618041287. The reversal of 85618041277 is 77214081658.

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

It is not a de Polignac number, because 85618041277 - 2¹⁹ = 85617516989 is a prime.

It is a super-2 number, since 2×85618041277² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85618041277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85618041217) 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, 62349 + ... + 418477.

It is an arithmetic number, because the mean of its divisors is an integer number (10953134280).

Almost surely, 2^85618041277 is an apocalyptic number.

It is an amenable number.

85618041277 is a deficient number, since it is larger than the sum of its proper divisors (2007032963).

85618041277 is a wasteful number, since it uses less digits than its factorization.

85618041277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361763.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 85618041277 in words is "eighty-five billion, six hundred eighteen million, forty-one thousand, two hundred seventy-seven".