78053665910 has 32 divisors (see below), whose sum is σ = 155866809600. Its totient is φ = 27902078560.

The previous prime is 78053665903. The next prime is 78053665913. The reversal of 78053665910 is 1956635087.

It is a happy number.

It is a super-2 number, since 2×78053665910² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78053665913) 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, 6006890 + ... + 6019869.

It is an arithmetic number, because the mean of its divisors is an integer number (4870837800).

Almost surely, 2^78053665910 is an apocalyptic number.

78053665910 is a deficient number, since it is larger than the sum of its proper divisors (77813143690).

78053665910 is a wasteful number, since it uses less digits than its factorization.

78053665910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026836.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 78053665910 in words is "seventy-eight billion, fifty-three million, six hundred sixty-five thousand, nine hundred ten".