78078289779001 has 8 divisors (see below), whose sum is σ = 84099014695520. Its totient is φ = 72248698986912.

The previous prime is 78078289778977. The next prime is 78078289779011. The reversal of 78078289779001 is 10097798287087.

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 78078289779001 - 2¹¹ = 78078289776953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78078289779011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47783530260 + ... + 47783531893.

It is an arithmetic number, because the mean of its divisors is an integer number (10512376836940).

Almost surely, 2^{78078289779001} is an apocalyptic number.

It is an amenable number.

78078289779001 is a deficient number, since it is larger than the sum of its proper divisors (6020724916519).

78078289779001 is a wasteful number, since it uses less digits than its factorization.

78078289779001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95567062215.

The product of its (nonzero) digits is 199148544, while the sum is 73.

The spelling of 78078289779001 in words is "seventy-eight trillion, seventy-eight billion, two hundred eighty-nine million, seven hundred seventy-nine thousand, one".