781480617363 has 32 divisors (see below), whose sum is σ = 1195265617920. Its totient is φ = 504109405440.

The previous prime is 781480617353. The next prime is 781480617367. The reversal of 781480617363 is 363716084187.

781480617363 is a `hidden beast` number, since 7 + 8 + 14 + 8 + 0 + 617 + 3 + 6 + 3 = 666.

It is not a de Polignac number, because 781480617363 - 2⁵ = 781480617331 is a prime.

It is a super-2 number, since 2×781480617363² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (781480617367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6178906 + ... + 6304112.

It is an arithmetic number, because the mean of its divisors is an integer number (37352050560).

Almost surely, 2^781480617363 is an apocalyptic number.

781480617363 is a deficient number, since it is larger than the sum of its proper divisors (413785000557).

781480617363 is a wasteful number, since it uses less digits than its factorization.

781480617363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132704 (or 132698 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 781480617363 in words is "seven hundred eighty-one billion, four hundred eighty million, six hundred seventeen thousand, three hundred sixty-three".