20401726730 has 96 divisors (see below), whose sum is σ = 46679421312. Its totient is φ = 6348451200.

The previous prime is 20401726717. The next prime is 20401726753. The reversal of 20401726730 is 3762710402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3646235 + ... + 3651825.

It is an arithmetic number, because the mean of its divisors is an integer number (486243972).

Almost surely, 2^20401726730 is an apocalyptic number.

20401726730 is an abundant number, since it is smaller than the sum of its proper divisors (26277694582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20401726730 is a wasteful number, since it uses less digits than its factorization.

20401726730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300 (or 6293 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The spelling of 20401726730 in words is "twenty billion, four hundred one million, seven hundred twenty-six thousand, seven hundred thirty".