77567740342 has 16 divisors (see below), whose sum is σ = 116653491360. Its totient is φ = 38683358272.

The previous prime is 77567740339. The next prime is 77567740351. The reversal of 77567740342 is 24304776577.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77567740342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363908 + ... + 1419640.

It is an arithmetic number, because the mean of its divisors is an integer number (7290843210).

Almost surely, 2^77567740342 is an apocalyptic number.

77567740342 is a deficient number, since it is larger than the sum of its proper divisors (39085751018).

77567740342 is a wasteful number, since it uses less digits than its factorization.

77567740342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57527.

The product of its (nonzero) digits is 6914880, while the sum is 52.

The spelling of 77567740342 in words is "seventy-seven billion, five hundred sixty-seven million, seven hundred forty thousand, three hundred forty-two".