78492485400 has 192 divisors, whose sum is σ = 279488064000. Its totient is φ = 17850792960.

The previous prime is 78492485381. The next prime is 78492485453. The reversal of 78492485400 is 458429487.

It is a super-2 number, since 2×78492485400² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 788844 + ... + 882756.

It is an arithmetic number, because the mean of its divisors is an integer number (1455667000).

Almost surely, 2^78492485400 is an apocalyptic number.

78492485400 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78492485400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139744032000).

78492485400 is an abundant number, since it is smaller than the sum of its proper divisors (200995578600).

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

78492485400 is a wasteful number, since it uses less digits than its factorization.

78492485400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94138 (or 94129 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 78492485400 in words is "seventy-eight billion, four hundred ninety-two million, four hundred eighty-five thousand, four hundred".