20387630435 has 8 divisors (see below), whose sum is σ = 24466307040. Its totient is φ = 16309337344.

The previous prime is 20387630423. The next prime is 20387630441. The reversal of 20387630435 is 53403678302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20387630435 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20387630392 and 20387630401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38099 + ... + 205491.

It is an arithmetic number, because the mean of its divisors is an integer number (3058288380).

Almost surely, 2^20387630435 is an apocalyptic number.

20387630435 is a deficient number, since it is larger than the sum of its proper divisors (4078676605).

20387630435 is a wasteful number, since it uses less digits than its factorization.

20387630435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191757.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 20387630435 in words is "twenty billion, three hundred eighty-seven million, six hundred thirty thousand, four hundred thirty-five".