78882494501 has 8 divisors (see below), whose sum is σ = 79212869400. Its totient is φ = 78552472320.

The previous prime is 78882494489. The next prime is 78882494519. The reversal of 78882494501 is 10549428887.

It can be written as a sum of positive squares in 4 ways, for example, as 40179801601 + 38702692900 = 200449^2 + 196730^2 .

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 78882494501 - 2²² = 78878300197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78882494701) 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 7 ways as a sum of consecutive naturals, for example, 364895 + ... + 539363.

It is an arithmetic number, because the mean of its divisors is an integer number (9901608675).

Almost surely, 2^78882494501 is an apocalyptic number.

It is an amenable number.

78882494501 is a deficient number, since it is larger than the sum of its proper divisors (330374899).

78882494501 is a wasteful number, since it uses less digits than its factorization.

78882494501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176359.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 78882494501 in words is "seventy-eight billion, eight hundred eighty-two million, four hundred ninety-four thousand, five hundred one".