780138251132 has 48 divisors (see below), whose sum is σ = 1414156750272. Its totient is φ = 376365749760.

The previous prime is 780138251119. The next prime is 780138251141. The reversal of 780138251132 is 231152831087.

It is a self number, because there is not a number n which added to its sum of digits gives 780138251132.

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, 5910368 + ... + 6040920.

It is an arithmetic number, because the mean of its divisors is an integer number (29461598964).

Almost surely, 2^780138251132 is an apocalyptic number.

It is an amenable number.

780138251132 is a deficient number, since it is larger than the sum of its proper divisors (634018499140).

780138251132 is a wasteful number, since it uses less digits than its factorization.

780138251132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131078 (or 131076 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 780138251132 in words is "seven hundred eighty billion, one hundred thirty-eight million, two hundred fifty-one thousand, one hundred thirty-two".