5285628631581 has 16 divisors (see below), whose sum is σ = 7257675033600. Its totient is φ = 3420179341488.

The previous prime is 5285628631553. The next prime is 5285628631631. The reversal of 5285628631581 is 1851368265825.

It is not a de Polignac number, because 5285628631581 - 2³⁷ = 5148189678109 is a prime.

It is a super-2 number, since 2×5285628631581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5285628671581) 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, 188987971 + ... + 189015936.

It is an arithmetic number, because the mean of its divisors is an integer number (453604689600).

Almost surely, 2^{5285628631581} is an apocalyptic number.

It is an amenable number.

5285628631581 is a deficient number, since it is larger than the sum of its proper divisors (1972046402019).

5285628631581 is a wasteful number, since it uses less digits than its factorization.

5285628631581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378004048.

The product of its digits is 27648000, while the sum is 60.

The spelling of 5285628631581 in words is "five trillion, two hundred eighty-five billion, six hundred twenty-eight million, six hundred thirty-one thousand, five hundred eighty-one".