20078837603 has 8 divisors (see below), whose sum is σ = 21940761600. Its totient is φ = 18223009480.

The previous prime is 20078837599. The next prime is 20078837641. The reversal of 20078837603 is 30673887002.

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 20078837603 - 2² = 20078837599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20078837203) 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, 1517075 + ... + 1530252.

It is an arithmetic number, because the mean of its divisors is an integer number (2742595200).

Almost surely, 2^20078837603 is an apocalyptic number.

20078837603 is a deficient number, since it is larger than the sum of its proper divisors (1861923997).

20078837603 is a wasteful number, since it uses less digits than its factorization.

20078837603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047937.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 20078837603 in words is "twenty billion, seventy-eight million, eight hundred thirty-seven thousand, six hundred three".