431162787061 has 2 divisors, whose sum is σ = 431162787062. Its totient is φ = 431162787060.

The previous prime is 431162787049. The next prime is 431162787101. The reversal of 431162787061 is 160787261134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232352920900 + 198809866161 = 482030^2 + 445881^2 .

It is a cyclic number.

It is not a de Polignac number, because 431162787061 - 2¹¹ = 431162785013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431162787761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215581393530 + 215581393531.

It is an arithmetic number, because the mean of its divisors is an integer number (215581393531).

Almost surely, 2^431162787061 is an apocalyptic number.

It is an amenable number.

431162787061 is a deficient number, since it is larger than the sum of its proper divisors (1).

431162787061 is an equidigital number, since it uses as much as digits as its factorization.

431162787061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 431162787061 in words is "four hundred thirty-one billion, one hundred sixty-two million, seven hundred eighty-seven thousand, sixty-one".