2021362032478 has 4 divisors (see below), whose sum is σ = 3032043048720. Its totient is φ = 1010681016238.

The previous prime is 2021362032463. The next prime is 2021362032491. The reversal of 2021362032478 is 8742302631202.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2021362032478² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021362032478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505340508118 + ... + 505340508121.

It is an arithmetic number, because the mean of its divisors is an integer number (758010762180).

Almost surely, 2^{2021362032478} is an apocalyptic number.

2021362032478 is a deficient number, since it is larger than the sum of its proper divisors (1010681016242).

2021362032478 is a wasteful number, since it uses less digits than its factorization.

2021362032478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010681016241.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 2021362032478 in words is "two trillion, twenty-one billion, three hundred sixty-two million, thirty-two thousand, four hundred seventy-eight".