77381560229 has 8 divisors (see below), whose sum is σ = 78601376832. Its totient is φ = 76166062560.

The previous prime is 77381560199. The next prime is 77381560247. The reversal of 77381560229 is 92206518377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-77381560229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77381560429) 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, 1043609 + ... + 1115294.

It is an arithmetic number, because the mean of its divisors is an integer number (9825172104).

Almost surely, 2^77381560229 is an apocalyptic number.

It is an amenable number.

77381560229 is a deficient number, since it is larger than the sum of its proper divisors (1219816603).

77381560229 is a wasteful number, since it uses less digits than its factorization.

77381560229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159467.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 77381560229 in words is "seventy-seven billion, three hundred eighty-one million, five hundred sixty thousand, two hundred twenty-nine".