20761382354 has 32 divisors (see below), whose sum is σ = 33831734400. Its totient is φ = 9528596352.

The previous prime is 20761382353. The next prime is 20761382387. The reversal of 20761382354 is 45328316702.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20761382353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40697 + ... + 207795.

It is an arithmetic number, because the mean of its divisors is an integer number (1057241700).

Almost surely, 2^20761382354 is an apocalyptic number.

20761382354 is a deficient number, since it is larger than the sum of its proper divisors (13070352046).

20761382354 is a wasteful number, since it uses less digits than its factorization.

20761382354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167234.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 20761382354 in words is "twenty billion, seven hundred sixty-one million, three hundred eighty-two thousand, three hundred fifty-four".