1493776778463 has 24 divisors (see below), whose sum is σ = 2237832245376. Its totient is φ = 995744064600.

The previous prime is 1493776778447. The next prime is 1493776778479. The reversal of 1493776778463 is 3648776773941.

It is a happy number.

1493776778463 is a `hidden beast` number, since 1 + 4 + 9 + 37 + 7 + 67 + 78 + 463 = 666.

It is an interprime number because it is at equal distance from previous prime (1493776778447) and next prime (1493776778479).

It is not a de Polignac number, because 1493776778463 - 2⁴ = 1493776778447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1493776778391 and 1493776778400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493776778423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1965828 + ... + 2617638.

It is an arithmetic number, because the mean of its divisors is an integer number (93243010224).

Almost surely, 2^{1493776778463} is an apocalyptic number.

1493776778463 is a deficient number, since it is larger than the sum of its proper divisors (744055466913).

1493776778463 is an frugal number, since it uses more digits than its factorization.

1493776778463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661257 (or 661245 counting only the distinct ones).

The product of its digits is 896168448, while the sum is 72.

The spelling of 1493776778463 in words is "one trillion, four hundred ninety-three billion, seven hundred seventy-six million, seven hundred seventy-eight thousand, four hundred sixty-three".