776729612340 has 96 divisors (see below), whose sum is σ = 2636173249920. Its totient is φ = 188298086400.

The previous prime is 776729612339. The next prime is 776729612381. The reversal of 776729612340 is 43216927677.

776729612340 is a `hidden beast` number, since 7 + 7 + 6 + 7 + 296 + 1 + 2 + 340 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65375341 + ... + 65387220.

It is an arithmetic number, because the mean of its divisors is an integer number (27460138020).

Almost surely, 2^776729612340 is an apocalyptic number.

It is an amenable number.

776729612340 is an abundant number, since it is smaller than the sum of its proper divisors (1859443637580).

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

776729612340 is a wasteful number, since it uses less digits than its factorization.

776729612340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130762590 (or 130762582 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 776729612340 in words is "seven hundred seventy-six billion, seven hundred twenty-nine million, six hundred twelve thousand, three hundred forty".