778264148472 has 32 divisors (see below), whose sum is σ = 2008423610880. Its totient is φ = 251052950880.

The previous prime is 778264148419. The next prime is 778264148477. The reversal of 778264148472 is 274841462877.

It is a happy number.

778264148472 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 super-3 number, since 3×778264148472³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778264148477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523026238 + ... + 523027725.

It is an arithmetic number, because the mean of its divisors is an integer number (62763237840).

Almost surely, 2^778264148472 is an apocalyptic number.

It is an amenable number.

778264148472 is an abundant number, since it is smaller than the sum of its proper divisors (1230159462408).

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

778264148472 is a wasteful number, since it uses less digits than its factorization.

778264148472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046054003 (or 1046053999 counting only the distinct ones).

The product of its digits is 33718272, while the sum is 60.

The spelling of 778264148472 in words is "seven hundred seventy-eight billion, two hundred sixty-four million, one hundred forty-eight thousand, four hundred seventy-two".