146691223487 has 2 divisors, whose sum is σ = 146691223488. Its totient is φ = 146691223486.

The previous prime is 146691223429. The next prime is 146691223493. The reversal of 146691223487 is 784322196641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146691223487 - 2¹² = 146691219391 is a prime.

It is a super-2 number, since 2×146691223487² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146691253487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73345611743 + 73345611744.

It is an arithmetic number, because the mean of its divisors is an integer number (73345611744).

Almost surely, 2^146691223487 is an apocalyptic number.

146691223487 is a deficient number, since it is larger than the sum of its proper divisors (1).

146691223487 is an equidigital number, since it uses as much as digits as its factorization.

146691223487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 53.

The spelling of 146691223487 in words is "one hundred forty-six billion, six hundred ninety-one million, two hundred twenty-three thousand, four hundred eighty-seven".