77412067698919 has 16 divisors (see below), whose sum is σ = 79760207338560. Its totient is φ = 75096828069120.

The previous prime is 77412067698907. The next prime is 77412067698947. The reversal of 77412067698919 is 91989676021477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77412067698919 is a prime.

It is a super-2 number, since 2×77412067698919² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77412767698919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423339529 + ... + 423522349.

It is an arithmetic number, because the mean of its divisors is an integer number (4985012958660).

Almost surely, 2^{77412067698919} is an apocalyptic number.

77412067698919 is a deficient number, since it is larger than the sum of its proper divisors (2348139639641).

77412067698919 is a wasteful number, since it uses less digits than its factorization.

77412067698919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272730.

The product of its (nonzero) digits is 576108288, while the sum is 76.

The spelling of 77412067698919 in words is "seventy-seven trillion, four hundred twelve billion, sixty-seven million, six hundred ninety-eight thousand, nine hundred nineteen".