78296649047 has 16 divisors (see below), whose sum is σ = 81517048704. Its totient is φ = 75148320000.

The previous prime is 78296648977. The next prime is 78296649049. The reversal of 78296649047 is 74094669287.

It is a cyclic number.

It is not a de Polignac number, because 78296649047 - 2¹⁴ = 78296632663 is a prime.

It is a super-2 number, since 2×78296649047² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78296649049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589922 + ... + 710352.

It is an arithmetic number, because the mean of its divisors is an integer number (5094815544).

Almost surely, 2^78296649047 is an apocalyptic number.

78296649047 is a deficient number, since it is larger than the sum of its proper divisors (3220399657).

78296649047 is a wasteful number, since it uses less digits than its factorization.

78296649047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120730.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 78296649047 in words is "seventy-eight billion, two hundred ninety-six million, six hundred forty-nine thousand, forty-seven".