78296509473 has 64 divisors (see below), whose sum is σ = 134901903360. Its totient is φ = 39279727872.

The previous prime is 78296509471. The next prime is 78296509477. The reversal of 78296509473 is 37490569287.

It is not a de Polignac number, because 78296509473 - 2¹ = 78296509471 is a prime.

It is a super-2 number, since 2×78296509473² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78296509471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 456636 + ... + 604242.

It is an arithmetic number, because the mean of its divisors is an integer number (2107842240).

Almost surely, 2^78296509473 is an apocalyptic number.

It is an amenable number.

78296509473 is a deficient number, since it is larger than the sum of its proper divisors (56605393887).

78296509473 is a wasteful number, since it uses less digits than its factorization.

78296509473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147726.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 78296509473 in words is "seventy-eight billion, two hundred ninety-six million, five hundred nine thousand, four hundred seventy-three".