78365110651 has 8 divisors (see below), whose sum is σ = 79465557600. Its totient is φ = 77271195072.

The previous prime is 78365110643. The next prime is 78365110661. The reversal of 78365110651 is 15601156387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78365110651 - 2³ = 78365110643 is a prime.

It is a super-2 number, since 2×78365110651² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78365110598 and 78365110607.

It is not an unprimeable number, because it can be changed into a prime (78365110661) 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, 1608676 + ... + 1656673.

It is an arithmetic number, because the mean of its divisors is an integer number (9933194700).

Almost surely, 2^78365110651 is an apocalyptic number.

78365110651 is a deficient number, since it is larger than the sum of its proper divisors (1100446949).

78365110651 is a wasteful number, since it uses less digits than its factorization.

78365110651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265685.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 78365110651 in words is "seventy-eight billion, three hundred sixty-five million, one hundred ten thousand, six hundred fifty-one".