76478235373 has 2 divisors, whose sum is σ = 76478235374. Its totient is φ = 76478235372.

The previous prime is 76478235349. The next prime is 76478235389. The reversal of 76478235373 is 37353287467.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69365337129 + 7112898244 = 263373^2 + 84338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76478235373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76478235973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38239117686 + 38239117687.

It is an arithmetic number, because the mean of its divisors is an integer number (38239117687).

Almost surely, 2^76478235373 is an apocalyptic number.

It is an amenable number.

76478235373 is a deficient number, since it is larger than the sum of its proper divisors (1).

76478235373 is an equidigital number, since it uses as much as digits as its factorization.

76478235373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17781120, while the sum is 55.

The spelling of 76478235373 in words is "seventy-six billion, four hundred seventy-eight million, two hundred thirty-five thousand, three hundred seventy-three".