19488680078 has 16 divisors (see below), whose sum is σ = 33449583744. Its totient is φ = 8342187000.

The previous prime is 19488680063. The next prime is 19488680093. The reversal of 19488680078 is 87008688491.

It is an interprime number because it is at equal distance from previous prime (19488680063) and next prime (19488680093).

It is a junction number, because it is equal to n+sod(n) for n = 19488679999 and 19488680026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830048 + ... + 853203.

It is an arithmetic number, because the mean of its divisors is an integer number (2090598984).

Almost surely, 2^19488680078 is an apocalyptic number.

19488680078 is a deficient number, since it is larger than the sum of its proper divisors (13960903666).

19488680078 is a wasteful number, since it uses less digits than its factorization.

19488680078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684087.

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 19488680078 in words is "nineteen billion, four hundred eighty-eight million, six hundred eighty thousand, seventy-eight".