77374247377 has 12 divisors (see below), whose sum is σ = 90011868516. Its totient is φ = 66317032320.

The previous prime is 77374247351. The next prime is 77374247393.

77374247377 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 73398188241 + 3976059136 = 270921^2 + 63056^2 .

It is a de Polignac number, because none of the positive numbers 2^k-77374247377 is a prime.

It is a super-3 number, since 3×77374247377³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77374247177) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1157253 + ... + 1222285.

It is an arithmetic number, because the mean of its divisors is an integer number (7500989043).

Almost surely, 2^77374247377 is an apocalyptic number.

It is an amenable number.

77374247377 is a deficient number, since it is larger than the sum of its proper divisors (12637621139).

77374247377 is a wasteful number, since it uses less digits than its factorization.

77374247377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89328 (or 89321 counting only the distinct ones).

The product of its digits is 33882912, while the sum is 58.

The spelling of 77374247377 in words is "seventy-seven billion, three hundred seventy-four million, two hundred forty-seven thousand, three hundred seventy-seven".