78451179062 has 4 divisors (see below), whose sum is σ = 117676768596. Its totient is φ = 39225589530.

The previous prime is 78451179061. The next prime is 78451179071. The reversal of 78451179062 is 26097115487.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26097115487 = 229 ⋅113961203.

It is a self number, because there is not a number n which added to its sum of digits gives 78451179062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78451179061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19612794764 + ... + 19612794767.

It is an arithmetic number, because the mean of its divisors is an integer number (29419192149).

Almost surely, 2^78451179062 is an apocalyptic number.

78451179062 is a deficient number, since it is larger than the sum of its proper divisors (39225589534).

78451179062 is a wasteful number, since it uses less digits than its factorization.

78451179062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39225589533.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 78451179062 in words is "seventy-eight billion, four hundred fifty-one million, one hundred seventy-nine thousand, sixty-two".