20368294951 has 4 divisors (see below), whose sum is σ = 20473830352. Its totient is φ = 20262759552.

The previous prime is 20368294939. The next prime is 20368295023. The reversal of 20368294951 is 15949286302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20368294951 - 2²⁷ = 20234077223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20368294895 and 20368294904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20368294931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52767411 + ... + 52767796.

It is an arithmetic number, because the mean of its divisors is an integer number (5118457588).

Almost surely, 2^20368294951 is an apocalyptic number.

20368294951 is a deficient number, since it is larger than the sum of its proper divisors (105535401).

20368294951 is a wasteful number, since it uses less digits than its factorization.

20368294951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105535400.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 20368294951 in words is "twenty billion, three hundred sixty-eight million, two hundred ninety-four thousand, nine hundred fifty-one".