77269106439 has 16 divisors (see below), whose sum is σ = 130826000640. Its totient is φ = 44153775000.

The previous prime is 77269106437. The next prime is 77269106449. The reversal of 77269106439 is 93460196277.

It is a happy number.

It is not a de Polignac number, because 77269106439 - 2¹ = 77269106437 is a prime.

It is a super-2 number, since 2×77269106439² (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 (77269106437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204415437 + ... + 204415814.

It is an arithmetic number, because the mean of its divisors is an integer number (8176625040).

Almost surely, 2^77269106439 is an apocalyptic number.

77269106439 is a deficient number, since it is larger than the sum of its proper divisors (53556894201).

77269106439 is a wasteful number, since it uses less digits than its factorization.

77269106439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408831267 (or 408831261 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 77269106439 in words is "seventy-seven billion, two hundred sixty-nine million, one hundred six thousand, four hundred thirty-nine".