780400473600 has 240 divisors, whose sum is σ = 2812369728960. Its totient is φ = 189187891200.

The previous prime is 780400473577. The next prime is 780400473661. The reversal of 780400473600 is 6374004087.

It is a happy number.

780400473600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501370 + ... + 1346169.

It is an arithmetic number, because the mean of its divisors is an integer number (11718207204).

Almost surely, 2^780400473600 is an apocalyptic number.

It is an amenable number.

780400473600 is an abundant number, since it is smaller than the sum of its proper divisors (2031969255360).

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

780400473600 is a wasteful number, since it uses less digits than its factorization.

780400473600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847581 (or 1847560 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

Adding to 780400473600 its reverse (6374004087), we get a palindrome (786774477687).

The spelling of 780400473600 in words is "seven hundred eighty billion, four hundred million, four hundred seventy-three thousand, six hundred".