799920007402 has 4 divisors (see below), whose sum is σ = 1199880011106. Its totient is φ = 399960003700.

The previous prime is 799920007349. The next prime is 799920007441. The reversal of 799920007402 is 204700029997.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204700029997 = 3413 ⋅59976569.

It can be written as a sum of positive squares in only one way, i.e., 799681274001 + 238733401 = 894249^2 + 15451^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 199980001849 + ... + 199980001852.

Almost surely, 2^799920007402 is an apocalyptic number.

799920007402 is a deficient number, since it is larger than the sum of its proper divisors (399960003704).

799920007402 is a wasteful number, since it uses less digits than its factorization.

799920007402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399960003703.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 799920007402 in words is "seven hundred ninety-nine billion, nine hundred twenty million, seven thousand, four hundred two".