78650071047 has 24 divisors (see below), whose sum is σ = 115574571008. Its totient is φ = 51526238400.

The previous prime is 78650071043. The next prime is 78650071109. The reversal of 78650071047 is 74017005687.

78650071047 is a `hidden beast` number, since 78 + 6 + 500 + 71 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 78650071047 - 2² = 78650071043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78650070993 and 78650071011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78650071043) 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, 534522 + ... + 665592.

Almost surely, 2^78650071047 is an apocalyptic number.

78650071047 is a deficient number, since it is larger than the sum of its proper divisors (36924499961).

78650071047 is a wasteful number, since it uses less digits than its factorization.

78650071047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132231 (or 132228 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 78650071047 in words is "seventy-eight billion, six hundred fifty million, seventy-one thousand, forty-seven".