20494826854 has 8 divisors (see below), whose sum is σ = 30747503088. Its totient is φ = 10245659160.

The previous prime is 20494826839. The next prime is 20494826893. The reversal of 20494826854 is 45862849402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862482 + ... + 885925.

It is an arithmetic number, because the mean of its divisors is an integer number (3843437886).

Almost surely, 2^20494826854 is an apocalyptic number.

20494826854 is a deficient number, since it is larger than the sum of its proper divisors (10252676234).

20494826854 is a wasteful number, since it uses less digits than its factorization.

20494826854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754270.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 20494826854 in words is "twenty billion, four hundred ninety-four million, eight hundred twenty-six thousand, eight hundred fifty-four".