20293987701 has 16 divisors (see below), whose sum is σ = 29166709824. Its totient is φ = 12477197184.

The previous prime is 20293987697. The next prime is 20293987717. The reversal of 20293987701 is 10778939202.

It is not a de Polignac number, because 20293987701 - 2² = 20293987697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20293987501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194391 + ... + 279956.

It is an arithmetic number, because the mean of its divisors is an integer number (1822919364).

Almost surely, 2^20293987701 is an apocalyptic number.

It is an amenable number.

20293987701 is a deficient number, since it is larger than the sum of its proper divisors (8872722123).

20293987701 is a wasteful number, since it uses less digits than its factorization.

20293987701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475460.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 20293987701 in words is "twenty billion, two hundred ninety-three million, nine hundred eighty-seven thousand, seven hundred one".