1421694477504 has 168 divisors, whose sum is σ = 4931129612448. Its totient is φ = 382304378880.

The previous prime is 1421694477473. The next prime is 1421694477547. The reversal of 1421694477504 is 4057744961241.

It is a happy number.

1421694477504 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 6 + 94 + 47 + 7 + 504 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10302127 + ... + 10439214.

Almost surely, 2^{1421694477504} is an apocalyptic number.

1421694477504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1421694477504 is an abundant number, since it is smaller than the sum of its proper divisors (3509435134944).

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

1421694477504 is a wasteful number, since it uses less digits than its factorization.

1421694477504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20741383 (or 20741370 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 1421694477504 in words is "one trillion, four hundred twenty-one billion, six hundred ninety-four million, four hundred seventy-seven thousand, five hundred four".