780154638048 has 96 divisors (see below), whose sum is σ = 2278531987200. Its totient is φ = 259699436928.

The previous prime is 780154638017. The next prime is 780154638073. The reversal of 780154638048 is 840836451087.

780154638048 is a `hidden beast` number, since 78 + 0 + 154 + 6 + 380 + 48 = 666.

780154638048 is digitally balanced in base 2 and base 4, because in such bases 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 (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 780154637985 and 780154638003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27565 + ... + 1249427.

It is an arithmetic number, because the mean of its divisors is an integer number (23734708200).

Almost surely, 2^780154638048 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 780154638048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139265993600).

780154638048 is an abundant number, since it is smaller than the sum of its proper divisors (1498377349152).

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

780154638048 is a wasteful number, since it uses less digits than its factorization.

780154638048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222621 (or 1222607 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 780154638048 in words is "seven hundred eighty billion, one hundred fifty-four million, six hundred thirty-eight thousand, forty-eight".