20120746499 has 8 divisors (see below), whose sum is σ = 22996253280. Its totient is φ = 17245518336.

The previous prime is 20120746453. The next prime is 20120746511. The reversal of 20120746499 is 99464702102.

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-20120746499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120746699) 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, 119267 + ... + 233379.

It is an arithmetic number, because the mean of its divisors is an integer number (2874531660).

Almost surely, 2^20120746499 is an apocalyptic number.

20120746499 is a deficient number, since it is larger than the sum of its proper divisors (2875506781).

20120746499 is a wasteful number, since it uses less digits than its factorization.

20120746499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139309.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 20120746499 in words is "twenty billion, one hundred twenty million, seven hundred forty-six thousand, four hundred ninety-nine".