1391429812408 has 32 divisors (see below), whose sum is σ = 2611099670400. Its totient is φ = 695136748768.

The previous prime is 1391429812397. The next prime is 1391429812417. The reversal of 1391429812408 is 8042189241931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123754035 + ... + 123765277.

It is an arithmetic number, because the mean of its divisors is an integer number (81596864700).

Almost surely, 2^{1391429812408} is an apocalyptic number.

It is an amenable number.

1391429812408 is a deficient number, since it is larger than the sum of its proper divisors (1219669857992).

1391429812408 is a wasteful number, since it uses less digits than its factorization.

1391429812408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22731 (or 22727 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 1391429812408 in words is "one trillion, three hundred ninety-one billion, four hundred twenty-nine million, eight hundred twelve thousand, four hundred eight".