21460505967 has 6 divisors (see below), whose sum is σ = 30998508632. Its totient is φ = 14307003972.

The previous prime is 21460505959. The next prime is 21460505987. The reversal of 21460505967 is 76950506412.

21460505967 is a `hidden beast` number, since 2 + 1 + 4 + 6 + 0 + 50 + 596 + 7 = 666.

It is not a de Polignac number, because 21460505967 - 2³ = 21460505959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21460505987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1192250323 + ... + 1192250340.

Almost surely, 2^21460505967 is an apocalyptic number.

21460505967 is a deficient number, since it is larger than the sum of its proper divisors (9538002665).

21460505967 is a wasteful number, since it uses less digits than its factorization.

21460505967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384500669 (or 2384500666 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 21460505967 in words is "twenty-one billion, four hundred sixty million, five hundred five thousand, nine hundred sixty-seven".