77738053226516 has 12 divisors (see below), whose sum is σ = 136043863612020. Its totient is φ = 38868377908800.

The previous prime is 77738053226489. The next prime is 77738053226527. The reversal of 77738053226516 is 61562235083777.

It can be written as a sum of positive squares in 2 ways, for example, as 17150448516100 + 60587604710416 = 4141310^2 + 7783804^2 .

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 161906435 + ... + 162385866.

It is an arithmetic number, because the mean of its divisors is an integer number (11336988634335).

Almost surely, 2^{77738053226516} is an apocalyptic number.

It is an amenable number.

77738053226516 is a deficient number, since it is larger than the sum of its proper divisors (58305810385504).

77738053226516 is a wasteful number, since it uses less digits than its factorization.

77738053226516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324352234 (or 324352232 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 62.

The spelling of 77738053226516 in words is "seventy-seven trillion, seven hundred thirty-eight billion, fifty-three million, two hundred twenty-six thousand, five hundred sixteen".