77800200126716 has 6 divisors (see below), whose sum is σ = 136150350221760. Its totient is φ = 38900100063356.

The previous prime is 77800200126707. The next prime is 77800200126743. The reversal of 77800200126716 is 61762100200877.

It is a happy number.

It is a super-2 number, since 2×77800200126716² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9725025015836 + ... + 9725025015843.

It is an arithmetic number, because the mean of its divisors is an integer number (22691725036960).

Almost surely, 2^{77800200126716} is an apocalyptic number.

It is an amenable number.

77800200126716 is a deficient number, since it is larger than the sum of its proper divisors (58350150095044).

77800200126716 is a wasteful number, since it uses less digits than its factorization.

77800200126716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19450050031683 (or 19450050031681 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 77800200126716 in words is "seventy-seven trillion, eight hundred billion, two hundred million, one hundred twenty-six thousand, seven hundred sixteen".