85631303511 has 24 divisors (see below), whose sum is σ = 133392255360. Its totient is φ = 52621811136.

The previous prime is 85631303497. The next prime is 85631303533. The reversal of 85631303511 is 11530313658.

85631303511 is a `hidden beast` number, since 8 + 5 + 6 + 3 + 130 + 3 + 511 = 666.

It is not a de Polignac number, because 85631303511 - 2⁷ = 85631303383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85631303581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433191 + ... + 599096.

It is an arithmetic number, because the mean of its divisors is an integer number (5558010640).

Almost surely, 2^85631303511 is an apocalyptic number.

85631303511 is a deficient number, since it is larger than the sum of its proper divisors (47760951849).

85631303511 is a wasteful number, since it uses less digits than its factorization.

85631303511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033015 (or 1033012 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 85631303511 in words is "eighty-five billion, six hundred thirty-one million, three hundred three thousand, five hundred eleven".