76826825309 has 8 divisors (see below), whose sum is σ = 82741905792. Its totient is φ = 70912505520.

The previous prime is 76826825303. The next prime is 76826825329. The reversal of 76826825309 is 90352862867.

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 76826825309 - 2¹² = 76826821213 is a prime.

It is a super-2 number, since 2×76826825309² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76826825303) 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 in 7 ways as a sum of consecutive naturals, for example, 28952 + ... + 393054.

It is an arithmetic number, because the mean of its divisors is an integer number (10342738224).

Almost surely, 2^76826825309 is an apocalyptic number.

It is an amenable number.

76826825309 is a deficient number, since it is larger than the sum of its proper divisors (5915080483).

76826825309 is a wasteful number, since it uses less digits than its factorization.

76826825309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380347.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 76826825309 in words is "seventy-six billion, eight hundred twenty-six million, eight hundred twenty-five thousand, three hundred nine".