18132267929431 has 2 divisors, whose sum is σ = 18132267929432. Its totient is φ = 18132267929430.

The previous prime is 18132267929411. The next prime is 18132267929449. The reversal of 18132267929431 is 13492976223181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18132267929431 - 2¹¹ = 18132267927383 is a prime.

It is a super-2 number, since 2×18132267929431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18132267929411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9066133964715 + 9066133964716.

It is an arithmetic number, because the mean of its divisors is an integer number (9066133964716).

Almost surely, 2^{18132267929431} is an apocalyptic number.

18132267929431 is a deficient number, since it is larger than the sum of its proper divisors (1).

18132267929431 is an equidigital number, since it uses as much as digits as its factorization.

18132267929431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 58.

The spelling of 18132267929431 in words is "eighteen trillion, one hundred thirty-two billion, two hundred sixty-seven million, nine hundred twenty-nine thousand, four hundred thirty-one".