20095642854 has 48 divisors (see below), whose sum is σ = 50390545920. Its totient is φ = 5668930800.

The previous prime is 20095642841. The next prime is 20095642877. The reversal of 20095642854 is 45824659002.

20095642854 is a `hidden beast` number, since 2 + 0 + 0 + 9 + 564 + 2 + 85 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 999472 + ... + 1019379.

It is an arithmetic number, because the mean of its divisors is an integer number (1049803040).

Almost surely, 2^20095642854 is an apocalyptic number.

20095642854 is an abundant number, since it is smaller than the sum of its proper divisors (30294903066).

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

20095642854 is a wasteful number, since it uses less digits than its factorization.

20095642854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018945 (or 2018942 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 20095642854 in words is "twenty billion, ninety-five million, six hundred forty-two thousand, eight hundred fifty-four".