20091074237 has 8 divisors (see below), whose sum is σ = 21649123104. Its totient is φ = 18534822768.

The previous prime is 20091074233. The next prime is 20091074281. The reversal of 20091074237 is 73247019002.

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

It is a cyclic number.

It is not a de Polignac number, because 20091074237 - 2² = 20091074233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20091074197 and 20091074206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20091074233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426083 + ... + 470880.

It is an arithmetic number, because the mean of its divisors is an integer number (2706140388).

Almost surely, 2^20091074237 is an apocalyptic number.

It is an amenable number.

20091074237 is a deficient number, since it is larger than the sum of its proper divisors (1558048867).

20091074237 is a wasteful number, since it uses less digits than its factorization.

20091074237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898699.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 20091074237 in words is "twenty billion, ninety-one million, seventy-four thousand, two hundred thirty-seven".