777390048 has 144 divisors (see below), whose sum is σ = 2307417840. Its totient is φ = 257458176.

The previous prime is 777389993. The next prime is 777390109. The reversal of 777390048 is 840093777.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 777389985 and 777390012.

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, 1998238 + ... + 1998626.

It is an arithmetic number, because the mean of its divisors is an integer number (16023735).

Almost surely, 2^777390048 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 777390048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153708920).

777390048 is an abundant number, since it is smaller than the sum of its proper divisors (1530027792).

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

777390048 is a wasteful number, since it uses less digits than its factorization.

777390048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 777390048 is about 27881.7152987401. The cubic root of 777390048 is about 919.4885500039.

The spelling of 777390048 in words is "seven hundred seventy-seven million, three hundred ninety thousand, forty-eight".