786761213481 has 28 divisors (see below), whose sum is σ = 1180100230020. Its totient is φ = 524286030240.

The previous prime is 786761213401. The next prime is 786761213519. The reversal of 786761213481 is 184312167687.

786761213481 is a `hidden beast` number, since 7 + 8 + 6 + 7 + 612 + 13 + 4 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 164462691600 + 622298521881 = 405540^2 + 788859^2 .

It is not a de Polignac number, because 786761213481 - 2¹⁴ = 786761197097 is a prime.

It is a super-2 number, since 2×786761213481² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (786761213401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1509115 + ... + 1962383.

Almost surely, 2^786761213481 is an apocalyptic number.

It is an amenable number.

786761213481 is a deficient number, since it is larger than the sum of its proper divisors (393339016539).

786761213481 is an equidigital number, since it uses as much as digits as its factorization.

786761213481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455668 (or 455653 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 786761213481 in words is "seven hundred eighty-six billion, seven hundred sixty-one million, two hundred thirteen thousand, four hundred eighty-one".