77204160205390 has 16 divisors (see below), whose sum is σ = 142723366434432. Its totient is φ = 30047024512224.

The previous prime is 77204160205349. The next prime is 77204160205391. The reversal of 77204160205390 is 9350206140277.

It is a self number, because there is not a number n which added to its sum of digits gives 77204160205390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77204160205391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104329945854 + ... + 104329946593.

It is an arithmetic number, because the mean of its divisors is an integer number (8920210402152).

Almost surely, 2^{77204160205390} is an apocalyptic number.

77204160205390 is a deficient number, since it is larger than the sum of its proper divisors (65519206229042).

77204160205390 is a wasteful number, since it uses less digits than its factorization.

77204160205390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208659892491.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 77204160205390 in words is "seventy-seven trillion, two hundred four billion, one hundred sixty million, two hundred five thousand, three hundred ninety".