85777131633 has 8 divisors (see below), whose sum is σ = 114370947648. Its totient is φ = 57184035024.

The previous prime is 85777131617. The next prime is 85777131641. The reversal of 85777131633 is 33613177758.

It is a happy number.

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

It is not a de Polignac number, because 85777131633 - 2⁴ = 85777131617 is a prime.

It is a super-2 number, since 2×85777131633² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85777130633) 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, 235191 + ... + 476307.

It is an arithmetic number, because the mean of its divisors is an integer number (14296368456).

Almost surely, 2^85777131633 is an apocalyptic number.

It is an amenable number.

85777131633 is a deficient number, since it is larger than the sum of its proper divisors (28593816015).

85777131633 is a wasteful number, since it uses less digits than its factorization.

85777131633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359703.

The product of its digits is 2222640, while the sum is 51.

The spelling of 85777131633 in words is "eighty-five billion, seven hundred seventy-seven million, one hundred thirty-one thousand, six hundred thirty-three".