76851669069 has 48 divisors (see below), whose sum is σ = 134498257920. Its totient is φ = 41349968640.

The previous prime is 76851669067. The next prime is 76851669071. The reversal of 76851669069 is 96096615867.

It is an interprime number because it is at equal distance from previous prime (76851669067) and next prime (76851669071).

It is not a de Polignac number, because 76851669069 - 2¹ = 76851669067 is a prime.

It is a super-2 number, since 2×76851669069² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 76851668997 and 76851669015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76851669061) 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 47 ways as a sum of consecutive naturals, for example, 459504 + ... + 604025.

It is an arithmetic number, because the mean of its divisors is an integer number (2802047040).

Almost surely, 2^76851669069 is an apocalyptic number.

It is an amenable number.

76851669069 is a deficient number, since it is larger than the sum of its proper divisors (57646588851).

76851669069 is a wasteful number, since it uses less digits than its factorization.

76851669069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063610 (or 1063607 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 76851669069 in words is "seventy-six billion, eight hundred fifty-one million, six hundred sixty-nine thousand, sixty-nine".