20909037435 has 192 divisors, whose sum is σ = 40982630400. Its totient is φ = 9019046400.

The previous prime is 20909037371. The next prime is 20909037451. The reversal of 20909037435 is 53473090902.

It is not a de Polignac number, because 20909037435 - 2⁶ = 20909037371 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 116810176 + ... + 116810354.

It is an arithmetic number, because the mean of its divisors is an integer number (213451200).

Almost surely, 2^20909037435 is an apocalyptic number.

20909037435 is a deficient number, since it is larger than the sum of its proper divisors (20073592965).

20909037435 is a wasteful number, since it uses less digits than its factorization.

20909037435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 20909037435 in words is "twenty billion, nine hundred nine million, thirty-seven thousand, four hundred thirty-five".