1391457828332 has 48 divisors (see below), whose sum is σ = 2861145921312. Its totient is φ = 583749588480.

The previous prime is 1391457828329. The next prime is 1391457828337. The reversal of 1391457828332 is 2338287541931.

It is not an unprimeable number, because it can be changed into a prime (1391457828337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4173518 + ... + 4494570.

It is an arithmetic number, because the mean of its divisors is an integer number (59607206694).

Almost surely, 2^{1391457828332} is an apocalyptic number.

It is an amenable number.

1391457828332 is an abundant number, since it is smaller than the sum of its proper divisors (1469688092980).

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

1391457828332 is a wasteful number, since it uses less digits than its factorization.

1391457828332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328658 (or 328656 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The spelling of 1391457828332 in words is "one trillion, three hundred ninety-one billion, four hundred fifty-seven million, eight hundred twenty-eight thousand, three hundred thirty-two".