77739270047 has 8 divisors (see below), whose sum is σ = 78854784000. Its totient is φ = 76627043064.

The previous prime is 77739270017. The next prime is 77739270079. The reversal of 77739270047 is 74007293777.

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 77739270047 - 2¹² = 77739265951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77739270017) 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, 774083 + ... + 868724.

It is an arithmetic number, because the mean of its divisors is an integer number (9856848000).

Almost surely, 2^77739270047 is an apocalyptic number.

77739270047 is a deficient number, since it is larger than the sum of its proper divisors (1115513953).

77739270047 is a wasteful number, since it uses less digits than its factorization.

77739270047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643485.

The product of its (nonzero) digits is 3630312, while the sum is 53.

The spelling of 77739270047 in words is "seventy-seven billion, seven hundred thirty-nine million, two hundred seventy thousand, forty-seven".