1391023142496 has 336 divisors, whose sum is σ = 4467512425824. Its totient is φ = 423585718272.

The previous prime is 1391023142489. The next prime is 1391023142521. The reversal of 1391023142496 is 6942413201931.

1391023142496 is a `hidden beast` number, since 1 + 3 + 9 + 10 + 2 + 3 + 142 + 496 = 666.

It is a super-2 number, since 2×1391023142496² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 29392965 + ... + 29440251.

It is an arithmetic number, because the mean of its divisors is an integer number (13296167934).

Almost surely, 2^{1391023142496} is an apocalyptic number.

1391023142496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1391023142496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2233756212912).

1391023142496 is an abundant number, since it is smaller than the sum of its proper divisors (3076489283328).

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

1391023142496 is an equidigital number, since it uses as much as digits as its factorization.

1391023142496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47425 (or 47402 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 1391023142496 in words is "one trillion, three hundred ninety-one billion, twenty-three million, one hundred forty-two thousand, four hundred ninety-six".