19413856954 has 8 divisors (see below), whose sum is σ = 29123505108. Its totient is φ = 9706021920.

The previous prime is 19413856927. The next prime is 19413856961. The reversal of 19413856954 is 45965831491.

It can be written as a sum of positive squares in 2 ways, for example, as 15894401329 + 3519455625 = 126073^2 + 59325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 19413856895 and 19413856904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426187 + ... + 469534.

Almost surely, 2^19413856954 is an apocalyptic number.

19413856954 is a deficient number, since it is larger than the sum of its proper divisors (9709648154).

19413856954 is a wasteful number, since it uses less digits than its factorization.

19413856954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906560.

The product of its digits is 4665600, while the sum is 55.

The spelling of 19413856954 in words is "nineteen billion, four hundred thirteen million, eight hundred fifty-six thousand, nine hundred fifty-four".