28902207661079 has 4 divisors (see below), whose sum is σ = 28903239210840. Its totient is φ = 28901176111320.

The previous prime is 28902207661057. The next prime is 28902207661087. The reversal of 28902207661079 is 97016670220982.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28902207661079 - 2¹² = 28902207656983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28902207661009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515732852 + ... + 515788889.

It is an arithmetic number, because the mean of its divisors is an integer number (7225809802710).

Almost surely, 2^{28902207661079} is an apocalyptic number.

28902207661079 is a deficient number, since it is larger than the sum of its proper divisors (1031549761).

28902207661079 is a wasteful number, since it uses less digits than its factorization.

28902207661079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031549760.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 28902207661079 in words is "twenty-eight trillion, nine hundred two billion, two hundred seven million, six hundred sixty-one thousand, seventy-nine".