2021392840466 has 16 divisors (see below), whose sum is σ = 3036156562080. Its totient is φ = 1009341186720.

The previous prime is 2021392840427. The next prime is 2021392840477. The reversal of 2021392840466 is 6640482931202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021392840466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7595006 + ... + 7856646.

It is an arithmetic number, because the mean of its divisors is an integer number (189759785130).

Almost surely, 2^{2021392840466} is an apocalyptic number.

2021392840466 is a deficient number, since it is larger than the sum of its proper divisors (1014763721614).

2021392840466 is a wasteful number, since it uses less digits than its factorization.

2021392840466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266809.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 2021392840466 in words is "two trillion, twenty-one billion, three hundred ninety-two million, eight hundred forty thousand, four hundred sixty-six".