20637734030 has 32 divisors (see below), whose sum is σ = 37404739008. Its totient is φ = 8198150400.

The previous prime is 20637734021. The next prime is 20637734041. The reversal of 20637734030 is 3043773602.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369919 + ... + 1384901.

It is an arithmetic number, because the mean of its divisors is an integer number (1168898094).

Almost surely, 2^20637734030 is an apocalyptic number.

20637734030 is a deficient number, since it is larger than the sum of its proper divisors (16767004978).

20637734030 is a wasteful number, since it uses less digits than its factorization.

20637734030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932.

The product of its (nonzero) digits is 63504, while the sum is 35.

The spelling of 20637734030 in words is "twenty billion, six hundred thirty-seven million, seven hundred thirty-four thousand, thirty".