78101424720 has 360 divisors, whose sum is σ = 298989800928. Its totient is φ = 18933108480.

The previous prime is 78101424703. The next prime is 78101424749. The reversal of 78101424720 is 2742410187.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2335639 + ... + 2368841.

Almost surely, 2^78101424720 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 78101424720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149494900464).

78101424720 is an abundant number, since it is smaller than the sum of its proper divisors (220888376208).

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

78101424720 is a wasteful number, since it uses less digits than its factorization.

78101424720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33253 (or 33224 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 78101424720 in words is "seventy-eight billion, one hundred one million, four hundred twenty-four thousand, seven hundred twenty".