77742864803 has 8 divisors (see below), whose sum is σ = 78355255968. Its totient is φ = 77132634624.

The previous prime is 77742864769. The next prime is 77742864809. The reversal of 77742864803 is 30846824777.

It is a happy number.

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 77742864803 - 2⁶ = 77742864739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77742864809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467975 + ... + 611952.

It is an arithmetic number, because the mean of its divisors is an integer number (9794406996).

Almost surely, 2^77742864803 is an apocalyptic number.

77742864803 is a deficient number, since it is larger than the sum of its proper divisors (612391165).

77742864803 is a wasteful number, since it uses less digits than its factorization.

77742864803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080493.

The product of its (nonzero) digits is 12644352, while the sum is 56.

The spelling of 77742864803 in words is "seventy-seven billion, seven hundred forty-two million, eight hundred sixty-four thousand, eight hundred three".