1391421103884 has 36 divisors (see below), whose sum is σ = 4019660967504. Its totient is φ = 397548886752.

The previous prime is 1391421103879. The next prime is 1391421103937. The reversal of 1391421103884 is 4883011241931.

1391421103884 is a `hidden beast` number, since 1 + 391 + 42 + 110 + 38 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1391421103884³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2760755907 + ... + 2760756410.

Almost surely, 2^{1391421103884} is an apocalyptic number.

1391421103884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1391421103884 is an abundant number, since it is smaller than the sum of its proper divisors (2628239863620).

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

1391421103884 is a wasteful number, since it uses less digits than its factorization.

1391421103884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521512334 (or 5521512329 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 1391421103884 in words is "one trillion, three hundred ninety-one billion, four hundred twenty-one million, one hundred three thousand, eight hundred eighty-four".