77743878036268 has 48 divisors (see below), whose sum is σ = 141443632512000. Its totient is φ = 37349539899840.

The previous prime is 77743878036263. The next prime is 77743878036283. The reversal of 77743878036268 is 86263087834777.

It is a super-2 number, since 2×77743878036268² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77743878036194 and 77743878036203.

It is not an unprimeable number, because it can be changed into a prime (77743878036263) 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, 42315871 + ... + 44114857.

It is an arithmetic number, because the mean of its divisors is an integer number (2946742344000).

Almost surely, 2^{77743878036268} is an apocalyptic number.

It is an amenable number.

77743878036268 is a deficient number, since it is larger than the sum of its proper divisors (63699754475732).

77743878036268 is a wasteful number, since it uses less digits than its factorization.

77743878036268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801510 (or 1801508 counting only the distinct ones).

The product of its (nonzero) digits is 3186376704, while the sum is 76.

The spelling of 77743878036268 in words is "seventy-seven trillion, seven hundred forty-three billion, eight hundred seventy-eight million, thirty-six thousand, two hundred sixty-eight".