72378694103 has 2 divisors, whose sum is σ = 72378694104. Its totient is φ = 72378694102.

The previous prime is 72378694039. The next prime is 72378694177. The reversal of 72378694103 is 30149687327.

It is a weak prime.

It is an emirp because it is prime and its reverse (30149687327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72378694103 - 2⁶ = 72378694039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72378694303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36189347051 + 36189347052.

It is an arithmetic number, because the mean of its divisors is an integer number (36189347052).

Almost surely, 2^72378694103 is an apocalyptic number.

72378694103 is a deficient number, since it is larger than the sum of its proper divisors (1).

72378694103 is an equidigital number, since it uses as much as digits as its factorization.

72378694103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 72378694103 in words is "seventy-two billion, three hundred seventy-eight million, six hundred ninety-four thousand, one hundred three".