20386768402 has 48 divisors (see below), whose sum is σ = 41791885632. Its totient is φ = 7331899680.

The previous prime is 20386768387. The next prime is 20386768427. The reversal of 20386768402 is 20486768302.

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 23 ways as a sum of consecutive naturals, for example, 713358 + ... + 741385.

It is an arithmetic number, because the mean of its divisors is an integer number (870664284).

Almost surely, 2^20386768402 is an apocalyptic number.

20386768402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20386768402 is an abundant number, since it is smaller than the sum of its proper divisors (21405117230).

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

20386768402 is a wasteful number, since it uses less digits than its factorization.

20386768402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454783 (or 1454776 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 20386768402 in words is "twenty billion, three hundred eighty-six million, seven hundred sixty-eight thousand, four hundred two".