78878030626560 has 576 divisors, whose sum is σ = 278512449546240. Its totient is φ = 18865841111040.

The previous prime is 78878030626487. The next prime is 78878030626573. The reversal of 78878030626560 is 6562603087887.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 78878030626491 and 78878030626500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1740561022 + ... + 1740606338.

It is an arithmetic number, because the mean of its divisors is an integer number (483528558240).

Almost surely, 2^{78878030626560} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78878030626560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139256224773120).

78878030626560 is an abundant number, since it is smaller than the sum of its proper divisors (199634418919680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78878030626560 is a wasteful number, since it uses less digits than its factorization.

78878030626560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45904 (or 45890 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 78878030626560 in words is "seventy-eight trillion, eight hundred seventy-eight billion, thirty million, six hundred twenty-six thousand, five hundred sixty".