77214769497 has 24 divisors (see below), whose sum is σ = 112655262720. Its totient is φ = 50960054880.

The previous prime is 77214769487. The next prime is 77214769523. The reversal of 77214769497 is 79496741277.

77214769497 is a `hidden beast` number, since 7 + 72 + 1 + 4 + 76 + 9 + 497 = 666.

It is not a de Polignac number, because 77214769497 - 2¹⁹ = 77214245209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77214769487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453654 + ... + 600192.

It is an arithmetic number, because the mean of its divisors is an integer number (4693969280).

Almost surely, 2^77214769497 is an apocalyptic number.

It is an amenable number.

77214769497 is a deficient number, since it is larger than the sum of its proper divisors (35440493223).

77214769497 is a wasteful number, since it uses less digits than its factorization.

77214769497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147133 (or 147130 counting only the distinct ones).

The product of its digits is 37340352, while the sum is 63.

The spelling of 77214769497 in words is "seventy-seven billion, two hundred fourteen million, seven hundred sixty-nine thousand, four hundred ninety-seven".