781434011034 has 24 divisors (see below), whose sum is σ = 1693472177280. Its totient is φ = 260421826248.

The previous prime is 781434010943. The next prime is 781434011077. The reversal of 781434011034 is 430110434187.

781434011034 is a `hidden beast` number, since 7 + 8 + 143 + 401 + 103 + 4 = 666.

It is a super-2 number, since 2×781434011034² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 781434011034.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4595632 + ... + 4762635.

It is an arithmetic number, because the mean of its divisors is an integer number (70561340720).

Almost surely, 2^781434011034 is an apocalyptic number.

781434011034 is an abundant number, since it is smaller than the sum of its proper divisors (912038166246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

781434011034 is a wasteful number, since it uses less digits than its factorization.

781434011034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9362914 (or 9362911 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 781434011034 in words is "seven hundred eighty-one billion, four hundred thirty-four million, eleven thousand, thirty-four".