77074680409 has 16 divisors (see below), whose sum is σ = 80243374464. Its totient is φ = 73985766400.

The previous prime is 77074680407. The next prime is 77074680433. The reversal of 77074680409 is 90408647077.

It is a cyclic number.

It is not a de Polignac number, because 77074680409 - 2¹ = 77074680407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77074680401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414777 + ... + 571129.

It is an arithmetic number, because the mean of its divisors is an integer number (5015210904).

Almost surely, 2^77074680409 is an apocalyptic number.

It is an amenable number.

77074680409 is a deficient number, since it is larger than the sum of its proper divisors (3168694055).

77074680409 is a wasteful number, since it uses less digits than its factorization.

77074680409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156608.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 77074680409 in words is "seventy-seven billion, seventy-four million, six hundred eighty thousand, four hundred nine".