76249381757 has 2 divisors, whose sum is σ = 76249381758. Its totient is φ = 76249381756.

The previous prime is 76249381751. The next prime is 76249381759. The reversal of 76249381757 is 75718394267.

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., 55585606756 + 20663775001 = 235766^2 + 143749^2 .

It is a cyclic number.

It is not a de Polignac number, because 76249381757 - 2¹² = 76249377661 is a prime.

Together with 76249381759, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76249381696 and 76249381705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76249381751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38124690878 + 38124690879.

It is an arithmetic number, because the mean of its divisors is an integer number (38124690879).

Almost surely, 2^76249381757 is an apocalyptic number.

It is an amenable number.

76249381757 is a deficient number, since it is larger than the sum of its proper divisors (1).

76249381757 is an equidigital number, since it uses as much as digits as its factorization.

76249381757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 59.

The spelling of 76249381757 in words is "seventy-six billion, two hundred forty-nine million, three hundred eighty-one thousand, seven hundred fifty-seven".