77741658640340 has 12 divisors (see below), whose sum is σ = 163257483144756. Its totient is φ = 31096663456128.

The previous prime is 77741658640307. The next prime is 77741658640391. The reversal of 77741658640340 is 4304685614777.

It can be written as a sum of positive squares in 2 ways, for example, as 13138580579524 + 64603078060816 = 3624718^2 + 8037604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943541465989 + ... + 1943541466028.

It is an arithmetic number, because the mean of its divisors is an integer number (13604790262063).

Almost surely, 2^{77741658640340} is an apocalyptic number.

It is an amenable number.

77741658640340 is an abundant number, since it is smaller than the sum of its proper divisors (85515824504416).

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

77741658640340 is a wasteful number, since it uses less digits than its factorization.

77741658640340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887082932026 (or 3887082932024 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 62.

The spelling of 77741658640340 in words is "seventy-seven trillion, seven hundred forty-one billion, six hundred fifty-eight million, six hundred forty thousand, three hundred forty".