78148365510054 has 96 divisors (see below), whose sum is σ = 192601279785600. Its totient is φ = 21004671942912.

The previous prime is 78148365509923. The next prime is 78148365510079. The reversal of 78148365510054 is 45001556384187.

It is a happy number.

It is a super-2 number, since 2×78148365510054² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78148365509976 and 78148365510003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6766189 + ... + 14215415.

It is an arithmetic number, because the mean of its divisors is an integer number (2006263331100).

Almost surely, 2^{78148365510054} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78148365510054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96300639892800).

78148365510054 is an abundant number, since it is smaller than the sum of its proper divisors (114452914275546).

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

78148365510054 is a wasteful number, since it uses less digits than its factorization.

78148365510054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7451362 (or 7451355 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 78148365510054 in words is "seventy-eight trillion, one hundred forty-eight billion, three hundred sixty-five million, five hundred ten thousand, fifty-four".