78296649045 has 16 divisors (see below), whose sum is σ = 127638312192. Its totient is φ = 40970321600.

The previous prime is 78296648977. The next prime is 78296649049. The reversal of 78296649045 is 54094669287.

It is not a de Polignac number, because 78296649045 - 2⁷ = 78296648917 is a prime.

It is a super-2 number, since 2×78296649045² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 78296649045.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49242381 + ... + 49243970.

It is an arithmetic number, because the mean of its divisors is an integer number (7977394512).

Almost surely, 2^78296649045 is an apocalyptic number.

It is an amenable number.

78296649045 is a deficient number, since it is larger than the sum of its proper divisors (49341663147).

78296649045 is a wasteful number, since it uses less digits than its factorization.

78296649045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98486412.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 78296649045 in words is "seventy-eight billion, two hundred ninety-six million, six hundred forty-nine thousand, forty-five".