245779789802 has 16 divisors (see below), whose sum is σ = 378576493512. Its totient is φ = 119629163520.

The previous prime is 245779789769. The next prime is 245779789807. The reversal of 245779789802 is 208987977542.

It can be written as a sum of positive squares in 4 ways, for example, as 218603937601 + 27175852201 = 467551^2 + 164851^2 .

It is not an unprimeable number, because it can be changed into a prime (245779789807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10372643 + ... + 10396310.

Almost surely, 2^245779789802 is an apocalyptic number.

245779789802 is a deficient number, since it is larger than the sum of its proper divisors (132796703710).

245779789802 is a wasteful number, since it uses less digits than its factorization.

245779789802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20769113.

The product of its (nonzero) digits is 142248960, while the sum is 68.

The spelling of 245779789802 in words is "two hundred forty-five billion, seven hundred seventy-nine million, seven hundred eighty-nine thousand, eight hundred two".