1861428714463 has 2 divisors, whose sum is σ = 1861428714464. Its totient is φ = 1861428714462.

The previous prime is 1861428714443. The next prime is 1861428714491. The reversal of 1861428714463 is 3644178241681.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1861428714463 - 2³⁷ = 1723989760991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1861428714443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930714357231 + 930714357232.

It is an arithmetic number, because the mean of its divisors is an integer number (930714357232).

Almost surely, 2^{1861428714463} is an apocalyptic number.

1861428714463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1861428714463 is an equidigital number, since it uses as much as digits as its factorization.

1861428714463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6193152, while the sum is 55.

The spelling of 1861428714463 in words is "one trillion, eight hundred sixty-one billion, four hundred twenty-eight million, seven hundred fourteen thousand, four hundred sixty-three".