77374894579 has 16 divisors (see below), whose sum is σ = 86097372768. Its totient is φ = 69207409152.

The previous prime is 77374894567. The next prime is 77374894603. The reversal of 77374894579 is 97549847377.

It is a cyclic number.

It is not a de Polignac number, because 77374894579 - 2¹⁷ = 77374763507 is a prime.

It is a super-3 number, since 3×77374894579³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77374894529) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1403332 + ... + 1457425.

It is an arithmetic number, because the mean of its divisors is an integer number (5381085798).

Almost surely, 2^77374894579 is an apocalyptic number.

77374894579 is a deficient number, since it is larger than the sum of its proper divisors (8722478189).

77374894579 is a wasteful number, since it uses less digits than its factorization.

77374894579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860854.

The product of its digits is 373403520, while the sum is 70.

The spelling of 77374894579 in words is "seventy-seven billion, three hundred seventy-four million, eight hundred ninety-four thousand, five hundred seventy-nine".