28264844200402 has 4 divisors (see below), whose sum is σ = 42397266300606. Its totient is φ = 14132422100200.

The previous prime is 28264844200387. The next prime is 28264844200441. The reversal of 28264844200402 is 20400244846282.

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

It can be written as a sum of positive squares in only one way, i.e., 21679723510201 + 6585120690201 = 4656149^2 + 2566149^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7066211050099 + ... + 7066211050102.

Almost surely, 2^{28264844200402} is an apocalyptic number.

28264844200402 is a deficient number, since it is larger than the sum of its proper divisors (14132422100204).

28264844200402 is a wasteful number, since it uses less digits than its factorization.

28264844200402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14132422100203.

The product of its (nonzero) digits is 1572864, while the sum is 46.

The spelling of 28264844200402 in words is "twenty-eight trillion, two hundred sixty-four billion, eight hundred forty-four million, two hundred thousand, four hundred two".