78450051492000 has 288 divisors, whose sum is σ = 290524419843840. Its totient is φ = 20010447705600.

The previous prime is 78450051491963. The next prime is 78450051492037. The reversal of 78450051492000 is 29415005487.

78450051492000 is a `hidden beast` number, since 7 + 8 + 4 + 500 + 51 + 4 + 92 + 0 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (78450051491963) and next prime (78450051492037).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 46545220 + ... + 48201219.

It is an arithmetic number, because the mean of its divisors is an integer number (1008765346680).

Almost surely, 2^{78450051492000} is an apocalyptic number.

It is an amenable number.

78450051492000 is an abundant number, since it is smaller than the sum of its proper divisors (212074368351840).

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

78450051492000 is a wasteful number, since it uses less digits than its factorization.

78450051492000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94746493 (or 94746472 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

Adding to 78450051492000 its reverse (29415005487), we get a palindrome (78479466497487).

The spelling of 78450051492000 in words is "seventy-eight trillion, four hundred fifty billion, fifty-one million, four hundred ninety-two thousand".