825477901431 has 16 divisors (see below), whose sum is σ = 1153098974208. Its totient is φ = 524617632000.

The previous prime is 825477901411. The next prime is 825477901433. The reversal of 825477901431 is 134109774528.

It is not a de Polignac number, because 825477901431 - 2¹⁹ = 825477377143 is a prime.

It is a super-2 number, since 2×825477901431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825477901433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66233370 + ... + 66245831.

It is an arithmetic number, because the mean of its divisors is an integer number (72068685888).

Almost surely, 2^825477901431 is an apocalyptic number.

825477901431 is a deficient number, since it is larger than the sum of its proper divisors (327621072777).

825477901431 is a wasteful number, since it uses less digits than its factorization.

825477901431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132479302.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 825477901431 in words is "eight hundred twenty-five billion, four hundred seventy-seven million, nine hundred one thousand, four hundred thirty-one".